1
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Chang MY, Hsueh NC. K 2CO 3/TFAA-activated diarylation of α-sulfonyl o-hydroxyacetophenones with o-nitroaryl disulfides to construct sulfonyl bis- o-nitroaryl acetophenones. Org Biomol Chem 2025; 23:4751-4757. [PMID: 40260713 DOI: 10.1039/d5ob00380f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/24/2025]
Abstract
A concise K2CO3/TFAA-mediated diarylation of readily accessible sulfonyl o-hydroxyacetophenones with o-nitroaryl disulfides is described. This single-step strategy provides a variety of functionalized sulfonyl C- and O-bis-o-nitroaryl acetophenones via the formation of one carbon-carbon single bond and one carbon-oxygen single bond. A plausible mechanism is proposed and discussed. The molecular structures of key products were determined by X-ray analysis.
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Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
- NPUST College of Professional Studies, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
| | - Nai-Chen Hsueh
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
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2
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Akiyama M, Amabe Y, Sugiyama M, Sugiyama K, Gatzenmeier T, Okazoe T. The Tetrafluoroethylene-Mediated Ring-Closing Metathesis: Enabling Unfavored Reactions. J Am Chem Soc 2024; 146:32550-32557. [PMID: 39538114 DOI: 10.1021/jacs.4c10509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2024]
Abstract
While ring-closing metathesis (RCM) is a powerful method for constructing medium and large cyclic alkenes, its application to the synthesis of heterocycles faces considerable limitations. For instance, RCM of divinyloxyalkanes does not proceed under the conventional conditions of RCM. The challenge lies in the formation of stable Fischer-type carbene intermediates with heteroatom(s) bound to the carbene carbon, impeding subsequent metathesis. In the present research, we develop a novel reaction system termed "tetrafluoroethylene (TFE)-mediated RCM", which enables the RCM of divinyloxyalkanes. In this system, a divinyloxyalkane and a TFE molecule are converted to the corresponding ring-closing product (cyclic 1,2-dioxyethene) and two molecules of 1,1-difluoroethylene. This method facilitates the construction of six- to eight-membered rings with various functional groups. The addition of TFE has two key effects: thermodynamically, it renders the entire reaction exergonic, while kinetically, it ensures that all ruthenium-carbene intermediates in the catalytic cycle are Fischer-type.
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Affiliation(s)
- Midori Akiyama
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Yuki Amabe
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, Tokyo 113-0032, Japan
| | - Masafumi Sugiyama
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, Tokyo 113-0032, Japan
| | - Kanami Sugiyama
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Tim Gatzenmeier
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, Tokyo 113-0032, Japan
| | - Takashi Okazoe
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, Tokyo 113-0032, Japan
- Yokohama Technical Center, AGC Inc., Kanagawa 230-0045, Japan
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3
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Wu K, Ruan X, Li Q, Jiang Q, Ni S, Zhou Q. Phosphine-Catalyzed [3 + 4] Annulations of Salicylaldehyde Schiff Bases with α-Substituted Allenes: Construction of Functionalized Benzoxepine Fused Succinimide Derivatives. Org Lett 2024; 26:9425-9430. [PMID: 39475578 DOI: 10.1021/acs.orglett.4c02952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2024]
Abstract
Herein we reported a novel strategy for constructing benzoxepine fused succinimide derivatives via a phosphine-catalyzed [3 + 4] cyclization of α-substituted allenes and salicylaldehyde Schiff bases. This methodology serves as a conduit for the construction of benzoxepine derivatives in good yields under mild conditions by an unprecedented mode involving the β'-carbon of allenes. Density functional theory calculations were conducted to study the possible mechanism. Moreover, this class of compounds exhibited the potential ability of cytotoxicity toward cancer cells.
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Affiliation(s)
- Ke Wu
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Xiuqin Ruan
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Quanxin Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, P. R. China
| | - Qihe Jiang
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Shaofei Ni
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, P. R. China
| | - Qingfa Zhou
- State Key Laboratory of Natural Medicines, Department of Organic Chemistry, China Pharmaceutical University, Nanjing 210009, P. R. China
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4
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Ji X, Shen C, Ni Y, Si ZY, Wang Y, Zhi X, Zhao Y, Peng H, Liu L. Stereoselective Synthesis of Polysubstituted Conjugated Dienes Enabled by Photo-Driven Sequential Sigmatropic Rearrangement. Angew Chem Int Ed Engl 2024; 63:e202400805. [PMID: 38587996 DOI: 10.1002/anie.202400805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/24/2024] [Accepted: 04/08/2024] [Indexed: 04/10/2024]
Abstract
We here reported a highly stereoselective method for the synthesis of polysubstituted conjugated dienes from α-aryl α-diazo alkynyl ketones and pyrazole-substituted unsymmetric aminals under mild conditions, which was promoted by photo-irridation and involved with 1,6-dipolar intermediate and quadruple sigmatropic rearrangements, was successfully developed. In this transformation, the cleavage of four bonds and the recombination of five bonds were implemented in one operational step. This protocol provided a modular tool for constructing dienes from amines, pyrazoles and α-alkynyl-α-diazoketones in one-pot manner. The results of mechanistic investigation indicated that the plausible reaction path underwent the 1,6-sigmatropic rearrangement instead of the 1,5-sigmatropic rearrangement.
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Affiliation(s)
- Xin Ji
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Chaoren Shen
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Yuhao Ni
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Zhi-Yao Si
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Yuzhu Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Xinrong Zhi
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Yuting Zhao
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Huiling Peng
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Lu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, 3663 N Zhongshan Road, Shanghai, 200062, P. R. China
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5
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Wang L, Yang S, Tang Y, Li K, Lu M, Guo H. Palladium-Catalyzed [5 + 4] Cycloaddition of 4-Vinyl-4-Butyrolactones with N-Tosyl Azadienes: Construction of Nine-Membered Ring. J Org Chem 2024; 89:5019-5028. [PMID: 38502934 DOI: 10.1021/acs.joc.4c00245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
In this paper, we reported the palladium-catalyzed formal [5 + 4] cycloaddition reactions between 4-vinyl-4-butyrolactones (VBLs) and azadienes. Under mild reaction conditions, a wide range of benzofuran-fused 9-membered heterocyclic compounds had been provided in moderate to excellent yields with exclusive regioselectivities and excellent diastereoselectivities. The practical applicability of the synthesis was demonstrated through scale-up reaction and further transformation.
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Affiliation(s)
- Lan Wang
- Department of Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Sen Yang
- Department of Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yi Tang
- Department of Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Kuan Li
- Department of Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Mengxi Lu
- Department of Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Hongchao Guo
- Department of Chemistry, China Agricultural University, Beijing 100193, P. R. China
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6
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Ji MM, Liu PR, Yan JD, He YY, Li H, Ma AJ, Peng JB. Ruthenium-Catalyzed Carbonylation of α-Aminoaryl-Tethered Alkylidenecyclopropanes: Synthesis of Eight-Membered Benzolactams. Org Lett 2024; 26:231-235. [PMID: 38165133 DOI: 10.1021/acs.orglett.3c03913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
The synthesis of medium-sized lactams is a great challenge because of the unfavorable transannular interactions and entropic barriers in the transition state. We have developed a ruthenium-catalyzed carbonylation of α-aminoaryl-tethered alkylidenecyclopropanes (ACPs) that allows for the efficient preparation of valuable eight-membered benzolactams under ligand-free conditions. The amino group served a dual role of both directing group and nucleophile to facilitate the metallacycle formation and the carbonylation.
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Affiliation(s)
- Miao-Miao Ji
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Peng-Rui Liu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Jun-Dong Yan
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Yong-Yu He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Hongguang Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
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7
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Adhikari AS, Majumdar N. Unconventional Reactivity of a Grubbs Catalyst: Hydroalkylation Overriding Metathesis. Org Lett 2023. [PMID: 38029292 DOI: 10.1021/acs.orglett.3c03456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Unprecedented reactivity of a Grubbs catalyst has been disclosed in a reaction between vinyl azaarenes and alkenylnitriles under standard metathesis conditions. No metathesis was observed; only hydroalkylation products were obtained in high yields. The practical utility of this method has been demonstrated by the application of the products in useful transformations, e.g., the formation of cyclic iminoesters and highly challenging medium-sized carbocycles.
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Affiliation(s)
- Amit Singh Adhikari
- Medicinal and Process Chemistry Division, Central Drug Research Institute (CSIR), Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow, Uttar Pradesh 226031, India
| | - Nilanjana Majumdar
- Medicinal and Process Chemistry Division, Central Drug Research Institute (CSIR), Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow, Uttar Pradesh 226031, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
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8
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Lin J, Zhu Z, Chen Y, Ma Z, Zuo W, Zhu M. Synthesis and Cytotoxicity Evaluation of Betulin Cycloolefin Derivatives by Ruthenium-Catalyzed Ring-Closing Metathesis. JOURNAL OF NATURAL PRODUCTS 2023; 86:842-849. [PMID: 36857482 DOI: 10.1021/acs.jnatprod.2c01019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The combination of ring-closing metathesis with betulin enables the design and synthesis of novel biomolecules representing a library of triterpenoid derivatives for potential pharmacological research. In this work, cyclic olefin betulin derivatives were attempted to be prepared by the combination of ring-closing metathesis with betulin. Dicyclohexyl carbodiimide coupling reaction allowed the transformation of betulin into two types of linear olefin derivatives that have different methylene spacer lengths between the olefin and ester groups. Subsequently, betulin-based cycloolefins were synthesized by ring-closing metathesis using Grubbs first-generation catalyst. The influence of different parameters including solvents, temperature, catalysts, and catalyst loading on ring-closing metathesis was investigated. Cytotoxicity results indicated that these betulin-based olefin derivatives, derived from renewable bioresources, have potential applications in the biomedical field.
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Affiliation(s)
- Jiahui Lin
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Zihao Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Yuwen Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Zhiyuan Ma
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Weiwei Zuo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
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9
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Chatterjee B, Mondal D, Bera S. Macrocyclization Strategies Towards the Synthesis of Amphidinolide Natural Products. ASIAN J ORG CHEM 2023. [DOI: 10.1002/ajoc.202200702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Bhaskar Chatterjee
- Department of Chemistry Nabadwip Vidyasagar College 741302 Nabadwip West Bengal India
| | - Dhananjoy Mondal
- School of Chemical Sciences Central University of Gujarat 382030 Gandhinagar Gujarat (India
| | - Smritilekha Bera
- School of Chemical Sciences Central University of Gujarat 382030 Gandhinagar Gujarat (India
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10
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Kaur N, Grewal P, Bhardwaj P, Verma Y, Ahlawat N. Synthesis of higher-membered heterocycles. SYNTHETIC COMMUN 2023. [DOI: 10.1080/00397911.2023.2172350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Navjeet Kaur
- Division of Research and Development, Department of Chemistry, Lovely Professional University, Phagwara, India
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11
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Chang MY, Chen KT. Synthesis of sulfonyl benzocyclononadienols. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Jia S, Tian Y, Li X, Wang P, Lan Y, Yan H. Atroposelective Construction of Nine-Membered Carbonate-Bridged Biaryls. Angew Chem Int Ed Engl 2022; 61:e202206501. [PMID: 35621411 DOI: 10.1002/anie.202206501] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Indexed: 12/27/2022]
Abstract
We herein demonstrated an efficient method for the atroposelective construction of nine-membered carbonate-bridged biaryls through vinylidene ortho-quinone methide (VQM) intermediates. Diverse products with desirable pharmacological features were synthesized in satisfying yields and good to excellent enantioselectivities. In subsequent bioassays, several agents showed considerable antiproliferative activity via the mitochondrial-related apoptosis mechanism. Further transformations produced more structural diversity and may inspire new ideas for developing functional molecules.
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Affiliation(s)
- Shiqi Jia
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, Henan, P. R. China
| | - Yuhong Tian
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Xin Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Pengfei Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
| | - Yu Lan
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, Henan, P. R. China.,School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing, 401331, P. R. China
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13
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Jia S, Tian Y, Li X, Wang P, Lan Y, Yan H. Atroposelective Construction of Nine‐Membered Carbonate Bridged Biaryls. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shiqi Jia
- Zhengzhou University Green Catalysis Center 重庆大学虎溪校区药学院 zhengzhou CHINA
| | - Yuhong Tian
- Chongqing University School of Pharmaceutical Sciences Chongqing CHINA
| | - Xin Li
- Chongqing University School of Pharmaceutical Sciences CHINA
| | - Pengfei Wang
- Chongqing University School of Pharmaceutical Sciences CHINA
| | - Yu Lan
- Chongqing University School of Chemistry and Chemical Engineering CHINA
| | - Hailong Yan
- Chongqing University Innovative Drug Research Center No.55 Daxuecheng South Rd 401331 Chongqing CHINA
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14
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Transition-metal-catalyzed switchable divergent cycloaddition of para-quinone methides and vinylethylene carbonates: Access to different sized medium-sized heterocycles. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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15
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Zhou L, Yu J, Xu M, Wang X, Zhang B, Mao H, Lv X. Catalyst-controlled cycloisomerization/[4+3] cycloaddition sequence to construct 2,3-furan-fused dihydroazepines and 2,3-pyrrole-fused dihydrooxepines. Org Chem Front 2022. [DOI: 10.1039/d1qo01733k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel catalyst-controlled cycloisomerization/[4+3]cycloaddition sequence of readily available acyclic enyne-amides and crotonate-derived sulfur ylides is reported. This strategy enables the rapid and efficient construction of a series of bicyclic 2,3-furan-fused...
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16
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Chakraborty B, Jana U. Iron-catalyzed alkyne-carbonyl metathesis for the synthesis of 6,7-dihydro-5 H-dibenzo[ c, e]azonines. Org Biomol Chem 2021; 19:10549-10553. [PMID: 34842881 DOI: 10.1039/d1ob01258d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The synthesis of nine-membered rings via alkyne-carbonyl metathesis is reported. The alkyne and acetal units contained in a biaryl substrate undergo the intramolecular alkyne-carbonyl metathesis reaction under FeCl3-catalysis to furnish the unexplored 6,7-dihydro-5H-dibenzo[c,e]azonines. The method provides an alternative to existing routes to nine-membered rings with cheap, non-toxic iron catalysts and milder conditions.
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Affiliation(s)
- Baitan Chakraborty
- Department of Chemistry, Jadavpur University, Kolkata 700032, West Bengal, India.
| | - Umasish Jana
- Department of Chemistry, Jadavpur University, Kolkata 700032, West Bengal, India.
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17
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Liang PY, Dai Y, Lu K, Yan CX, Liu Y, Zhou PP, Yang Z. DABCO-mediated [4 + 4]-domino annulation reactions of ynones and α-cyano-α,β-unsaturated ketones: Mechanisms and the role of DABCO. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Englert L, Schmidt U, Dömling M, Passargus M, Stennett TE, Hermann A, Arrowsmith M, Härterich M, Müssig J, Phillipps A, Prieschl D, Rempel A, Rohm F, Radacki K, Schorr F, Thiess T, Jiménez-Halla JOC, Braunschweig H. Reactions of diborenes with terminal alkynes: mechanisms of ligand-controlled anti-selective hydroalkynylation, cycloaddition and C[triple bond, length as m-dash]C triple bond scission. Chem Sci 2021; 12:9506-9515. [PMID: 34349926 PMCID: PMC8314202 DOI: 10.1039/d1sc02081a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 06/02/2021] [Indexed: 01/03/2023] Open
Abstract
The reactions of terminal acetylenes with doubly Lewis base-stabilised diborenes resulted in different outcomes depending on the nature of the ligands at boron and the conformation of the diborene (cyclic versus acyclic). N-heterocyclic carbene (NHC)-stabilised diborenes tended to undergo anti-selective hydroalkynylation at room temperature, whereas [2 + 2] cycloaddition was observed at higher temperatures, invariably followed by a C–N bond activation at one NHC ligand, leading to the ring-expansion of the initially formed BCBC ring and formation of novel boron-containing heterocycles. For phosphine-stabilised diborenes only [2 + 2] cycloaddition was observed, followed by a rearrangement of the resulting 1,2-dihydro-1,2-diborete to the corresponding 1,3-isomer, which amounts to complete scission of both the B
Created by potrace 1.16, written by Peter Selinger 2001-2019
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B double and CC triple bonds of the reactants. The elusive 1,2-isomer was finally trapped by using a cyclic phosphine-stabilised diborene, which prevented rearrangement to the 1,3-isomer. Extensive density functional theory (DFT) calculations provide a rationale for the selectivity observed. The outcome of reactions between diborenes and terminal alkynes can be tuned by varying the stabilising Lewis base and/or reaction conditions, to yield either the anti-hydroalkynylation product or [2 + 2] cycloaddition-derived boron heterocycles.![]()
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Affiliation(s)
- Lukas Englert
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Uwe Schmidt
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Michael Dömling
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Max Passargus
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Tom E Stennett
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Alexander Hermann
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Merle Arrowsmith
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Marcel Härterich
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Jonas Müssig
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Alexandra Phillipps
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Dominic Prieschl
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Anna Rempel
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Felix Rohm
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Krzysztof Radacki
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Fabian Schorr
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Torsten Thiess
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | | | - Holger Braunschweig
- Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany .,Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
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19
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Li JF, Xu WW, Wang RH, Li Y, Yin G, Ye M. Construction 7-membered ring via Ni-Al bimetal-enabled C-H cyclization for synthesis of tricyclic imidazoles. Nat Commun 2021; 12:3070. [PMID: 34031420 PMCID: PMC8144396 DOI: 10.1038/s41467-021-23371-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/22/2021] [Indexed: 11/09/2022] Open
Abstract
The construction of 7-membered ring via direct C7-H cyclization of benzoimidazoles with alkenes would provide a more atom- and step-economical route to tricyclic imidazoles and derivatives that widely exist in a broad range of bioactive molecules. However, transition metal-catalyzed C-H cyclization for medium-ring synthesis has been limited to reactive C-H bonds, instead, the activation of unreactive C-H bonds towards medium synthesis still remains an elusive challenge. Herein, we report a direct construction of 7-membered rings via Ni-Al co-catalyzed unreactive C7-H cyclization of benzoimidazoles with alkenes, providing a series of tricyclic imidazoles in 40-98% yield and with up to 95:5 er.
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Affiliation(s)
- Jiang-Fei Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Wei-Wei Xu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Rong-Hua Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Yue Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Ge Yin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Mengchun Ye
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China.
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20
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Mandal S, Banerjee J, Maity S, Chattopadhyay SK. Sequential Two‐Fold
Claisen
Rearrangement, One‐Pot Ring‐Closing Metathesis and Cross‐Metathesis as a Route to Substituted Benzo[
b
]azepine‐2‐one, Benzo[
b
]azepine and Benzo[
b
]oxepine Derivatives. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202000216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shyamasankar Mandal
- Department of Chemistry University of Kalyani Kalyani 741235 West Bengal India
| | - Jeet Banerjee
- Department of Chemistry University of Kalyani Kalyani 741235 West Bengal India
| | - Sougata Maity
- Department of Chemistry University of Kalyani Kalyani 741235 West Bengal India
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21
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He Z, Wang G, Wang C, Guo L, Wei R, Song G, Pan D, Das R, Naik N, Hu Z, Guo Z. Overview of Anion Exchange Membranes Based on Ring Opening Metathesis Polymerization (ROMP). POLYM REV 2021. [DOI: 10.1080/15583724.2021.1881792] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Zhenfeng He
- School of Chemical Engineering and Technology, North University of China, Taiyuan, China
| | - Guoqing Wang
- School of Chemical Engineering and Technology, North University of China, Taiyuan, China
| | - Chao Wang
- College of Materials Science and Engineering, North University of China, Taiyuan, China
| | - Li Guo
- Advanced Energy Materials and Systems Institute, North University of China, Taiyuan, China
| | - Renbo Wei
- School of Chemical Engineering, Northwest University, Xi’an, China
| | - Gang Song
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, China
| | - Duo Pan
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, China
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee, USA
| | - Rajib Das
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee, USA
| | - Nithesh Naik
- Department of Mechanical & Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Zhuolin Hu
- Advanced Energy Materials and Systems Institute, North University of China, Taiyuan, China
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee, USA
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22
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Zhao P, Yu XX, Zhou Y, Huang C, Wu YD, Zhu YP, Wu AX. Arylacetylenes as two-carbon synthons: synthesis of eight-membered rings via C[triple bond, length as m-dash]C bond cleavage. Chem Commun (Camb) 2020; 56:12554-12557. [PMID: 32940307 DOI: 10.1039/d0cc05363e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The first synthesis of eight-membered N-containing heterocycles by oxidative bicyclization/ring extension of arylacetylenes and aryl amines has been achieved. This protocol uses arylacetylene as an unusual two-carbon synthon by incorporating the two parts of the cracked C[triple bond, length as m-dash]C bond into the final product, which provides a new method for using arylacetylenes as two-carbon synthons and further enriches C[triple bond, length as m-dash]C bond cleavage methodology. Moreover, this multi-component reaction can provide diverse fused elegant eight-membered N-heterocycles under mild conditions with wide substrate scopes.
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Affiliation(s)
- Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
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23
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Affiliation(s)
- Ronald L. Reyes
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo 001-0021, Japan
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Tomohiro Iwai
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Masaya Sawamura
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo 001-0021, Japan
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
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24
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Ghosh A, Chattopadhyay SK. Microwave-mediated Synthesis of Medium Ring-sized Heterocyclic Compounds. CURRENT MICROWAVE CHEMISTRY 2020. [DOI: 10.2174/2213335607666200226101602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Many medium ring-sized heterocyclic motifs are found in naturally occurring compounds
of significant biological activity which led to the investigation of the biological activity of simpler
heterocyclic compounds accommodating these ring systems. Therefore, the development of newer
synthetic methodologies to access such ring systems has remained an important activity over the last
few decades. However, common methods of their synthesis are usually associated with thermodynamic
disadvantages. Many metal-mediated transformations e.g., Heck reaction, Suzuki reaction, etc.
tend to overcome some of these effects but at the cost of environmental disadvantages. In recent
years, several green chemical techniques have found useful applications in the synthesis of such ring
systems. In particular, the use of microwave technology has provided better opportunities. The present
review attempts to highlight many synthetic approaches developed for the synthesis of such heterocyclic
scaffolds of pharmacological interest involving condensation reaction, coupling reaction,
Multi-component reaction, Cyclo-addition reaction, Dipolar cycloaddition reaction, etc. An emphasis
has also been given on the distinct advantages offered by microwave application over classical approaches,
wherever such knowledge is available.
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Affiliation(s)
- Amrita Ghosh
- Department of Chemistry, University of Kalyani Kalyani-741235, West Bengal, India
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25
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Choury M, Basilio Lopes A, Blond G, Gulea M. Synthesis of Medium-Sized Heterocycles by Transition-Metal-Catalyzed Intramolecular Cyclization. Molecules 2020; 25:E3147. [PMID: 32660105 PMCID: PMC7397130 DOI: 10.3390/molecules25143147] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/04/2020] [Accepted: 07/07/2020] [Indexed: 12/29/2022] Open
Abstract
Medium-sized heterocycles (with 8 to 11 atoms) constitute important structural components of several biologically active natural compounds and represent promising scaffolds in medicinal chemistry. However, they are under-represented in the screening of chemical libraries as a consequence of being difficult to access. In particular, methods involving intramolecular bond formation are challenging due to unfavorable enthalpic and entropic factors, such as transannular interactions and conformational constraints. The present review focuses on the synthesis of medium-sized heterocycles by transition-metal-catalyzed intramolecular cyclization, which despite its drawbacks remains a straightforward and attractive synthesis strategy. The obtained heterocycles differ in their nature, number of heteroatoms, and ring size. The methods are classified according to the metal used (palladium, copper, gold, silver), then subdivided according to the type of bond formed, namely carbon-carbon or carbon-heteroatom.
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Affiliation(s)
| | | | | | - Mihaela Gulea
- Université de Strasbourg, CNRS, Laboratoire d’Innovation Thérapeutique, LIT UMR 7200, F-67000 Strasbourg, France; (M.C.); (A.B.L.); (G.B.)
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26
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Yamanushkin P, Smith SP, Petillo PA, Rubin M. Cyclopropene-Templated Assembly of Medium Cycles via Ru-Catalyzed Ring-Closing Metathesis. Org Lett 2020; 22:3542-3546. [PMID: 32323545 DOI: 10.1021/acs.orglett.0c00974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An expeditious click-click cyclize strategy for the assembly of medium-sized heterocyclic rings is described. The sequence involves the reaction of cycloprop-2-ene carboxylic acids with unsaturated amines to furnish amides, which are further subjected to a Cu-catalyzed directed carbomagnesiation and a ring-closing olefin metathesis reaction. This methodology allows for the efficient preparation of lactams with ring sizes up to 10.
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Affiliation(s)
- Pavel Yamanushkin
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas 66045, United States
| | - Sean P Smith
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas 66045, United States
| | - Peter A Petillo
- Design-Zyme LLC, 4950 Research Park Way, Lawrence, Kansas 66047, United States
| | - Michael Rubin
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas 66045, United States.,Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
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27
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Taleb A, Lahrech M, Hacini S, Thibonnet J, Parrain J. RCM
vs
Oxacycloisomerization through Divergent Reactivity of Dienyl‐ or Ynenylcycloalkanols using Grubbs Catalyst: an Access to Carbobicycles and Fused Bicyclic Dihydrofurans. ChemistrySelect 2019. [DOI: 10.1002/slct.201902783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Assya Taleb
- Laboratoire de Chimie FineFSEAUniversité Oran1, B.P-1524 Menouar 31000 Oran Algérie
| | - Mokhtar Lahrech
- Laboratoire de Chimie Organique et de Substances Naturelles (LCOSNa)Université de Djelfa Algérie
| | - Salih Hacini
- Laboratoire de Chimie FineFSEAUniversité Oran1, B.P-1524 Menouar 31000 Oran Algérie
| | - Jerome Thibonnet
- Laboratoire SIMBA EA 7502Département de Chimie, 32 Av. MongeUniversité de Tours 37200 Tours France
| | - Jean‐Luc Parrain
- Aix-Marseille UniversitéCNRSCentrale Marseille, iSm2, Marseille France
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28
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Abozeid MA, El-Sawi AA, Elmorsy MR, Abdelmoteleb M, Hassan Abdel-Rahman AR, Ibrahim El-Desoky ES. Unorthodox synthesis, biological activity and DFT studies of novel and multifunctionalized naphthoxocine derivatives. RSC Adv 2019; 9:27996-28005. [PMID: 35558993 PMCID: PMC9088745 DOI: 10.1039/c9ra05154f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 08/29/2019] [Indexed: 11/21/2022] Open
Abstract
A new promising protocol has been developed for the synthesis of scarce oxocine derivatives 3a-e and 6 through addition of amine-based nucleophiles such as hydroxylamine hydrochloride, primary amine and hydrazide to chromonylidene benzothiazol-2-ylacetonitrile 2 in refluxing dioxane under metal free reaction conditions in moderate to good yields. Other nitrogen nucleophiles such as piperidine, hydrazine and thiosemicarbazide failed to afford the corresponding oxocinols, and instead pyridine derivatives 7, 8 and 10 were obtained exclusively. Predictive study for the biological activities using PASS (prediction of activity spectra for biologically active substances) online software showed optimistic activities for oxocinols 3a-e in the treatment of cancer, influenza A and microbial infections. Additionally, DFT studies of oxocine derivatives 3a-e and 6 indicated the presence of required thermodynamics parameters for the application in dye-sensitized solar cells (DSSCs).
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Affiliation(s)
- Mohamed Ahmed Abozeid
- Department of Chemistry, Faculty of Science, Mansoura University Mansoura-35516 Egypt +20502246254 +201060614054
| | - Aya Atef El-Sawi
- Department of Chemistry, Faculty of Science, Mansoura University Mansoura-35516 Egypt +20502246254 +201060614054
| | - Mohamed Ramadan Elmorsy
- Department of Chemistry, Faculty of Science, Mansoura University Mansoura-35516 Egypt +20502246254 +201060614054
| | - Mohamed Abdelmoteleb
- Food Allergy Research & Resource Program (FARRP), Department of Food Science & Technology, University of Nebraska Lincoln NE USA
- Department of Botany, Faculty of Science, Mansoura University Mansoura-35516 Egypt
| | | | - El-Sayed Ibrahim El-Desoky
- Department of Chemistry, Faculty of Science, Mansoura University Mansoura-35516 Egypt +20502246254 +201060614054
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29
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Chavan SP, Kadam AL, Kawale SA. Total Synthesis of (±)-Quinagolide: A Potent D 2 Receptor Agonist for the Treatment of Hyperprolactinemia. ACS OMEGA 2019; 4:8231-8238. [PMID: 31459911 PMCID: PMC6648496 DOI: 10.1021/acsomega.9b00903] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/15/2019] [Indexed: 05/15/2023]
Abstract
A potent dopamine (D2) receptor agonist (±)-quinagolide, which is used for the treatment of hyperprolactinemia, was synthesized using the ring closing metathesis (RCM) approach from meta-hydroxybenzaldehyde as the starting material. The key features of this synthesis are pyrolytic elimination, late-stage expedient synthesis of functionalized trans-fused tetrahydropyridine-3-carboxylates from olefin 6, via conjugate addition-elimination upon acetate 11, followed by RCM and phenyliodine bis(trifluoroacetate) (PIFA)-mediated Hofmann rearrangement of piperidine-3-carboxamide, which enables the synthesis of 3-aminopiperidine skeleton of quinagolide. For the total synthesis of natural products such as ergot alkaloids, late-stage synthesis of functionalized trans-fused tetrahydropyridine-3-carboxylates using RCM and PIFA-mediated Hofmann rearrangement of piperidine-3-carboxamide, which allows quick access to the synthetically challenging 3-aminopiperidine skeleton, are the main achievements of the present work.
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Affiliation(s)
- Subhash P. Chavan
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
| | - Appasaheb L. Kadam
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
| | - Sanket A. Kawale
- Division
of Organic Chemistry, CSIR-National Chemical
Laboratory, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110025, India
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30
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Gao X, Xia M, Yuan C, Zhou L, Sun W, Li C, Wu B, Zhu D, Zhang C, Zheng B, Wang D, Guo H. Enantioselective Synthesis of Chiral Medium-Sized Cyclic Compounds via Tandem Cycloaddition/Cope Rearrangement Strategy. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04590] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xing Gao
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Miaoren Xia
- Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, P. R. China
| | - Chunhao Yuan
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Leijie Zhou
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Wei Sun
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Cheng Li
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Bo Wu
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Dongyu Zhu
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Cheng Zhang
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Bing Zheng
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Dongqi Wang
- Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, P. R. China
| | - Hongchao Guo
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
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31
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Affiliation(s)
- Fumihiko Yoshimura
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Taku Okada
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-0810, Japan
| | - Keiji Tanino
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
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32
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Hegmann N, Prusko L, Diesendorf N, Heinrich MR. In Situ Conformational Fixation of the Amide Bond Enables General Access to Medium-Sized Lactams via Ring-Closing Metathesis. Org Lett 2018; 20:7825-7829. [DOI: 10.1021/acs.orglett.8b03320] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Nina Hegmann
- Department of Chemistry and Pharmacy; Pharmaceutical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
| | - Lea Prusko
- Department of Chemistry and Pharmacy; Pharmaceutical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
| | - Nina Diesendorf
- Department of Chemistry and Pharmacy; Pharmaceutical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
| | - Markus R. Heinrich
- Department of Chemistry and Pharmacy; Pharmaceutical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
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33
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Wang Z, Chen L, Yao Y, Liu Z, Gao JM, She X, Zheng H. Dearomatization of Indole via Intramolecular [3 + 2] Cycloaddition: Access to the Pentacyclic Skeleton of Strychons Alkaloids. Org Lett 2018; 20:4439-4443. [PMID: 30016108 DOI: 10.1021/acs.orglett.8b01720] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient method to build various multisubstituted polycyclic indoline-annulated normal to medium-size rings through dearomatization of indole via a tandem 1,2-acyloxy migration/intramolecular [3 + 2] cycloaddition process is described. The pentacyclic skeleton of strychnine could be synthesized via this tandem cycloaddition and a further Mannich reaction. This approach would provide a novel strategy to the synthesis of strychons alkaloids.
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Affiliation(s)
- Zhengshen Wang
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , China
| | - Luxin Chen
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , China
| | - Yuan Yao
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , China
| | - Zhigang Liu
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering , Lanzhou University , 222 South Tianshui Road , Lanzhou 730000 , China
| | - Huaiji Zheng
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , 3 Taicheng Road , Yangling 712100 , China.,Key Laboratory of Botanical Pesticide R&D in Shaanxi Province , Yangling 712100 , China
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34
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Jouanneau M, Bonepally KR, Jeuken A, Tap A, Guillot R, Ardisson J, Férézou JP, Prunet J. Diastereoselective Synthesis of an Advanced Intermediate of Thapsigargin and Other 6,12-Guaianolides Using a RCEYM Strategy. Org Lett 2018; 20:2176-2180. [PMID: 29616815 DOI: 10.1021/acs.orglett.8b00456] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A new and flexible approach toward the synthesis of 6,12-guaianolide anticancer drugs such as trilobolides or thapsigargin has been developed that could be applied to the preparation of analogues with a modified ring system. The synthesis starts from commercial 2-methylcyclopentane-1,3-dione, only relying on diastereoselective reactions for the construction of the stereogenic centers at C1, C3, C6, and C10 and features a high-yielding ring-closing enyne metathesis (RCEYM) step for the formation of the [5,7] bicyclic core.
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Affiliation(s)
- Morgan Jouanneau
- Méthodologie, Synthèse et Molécules Thérapeutiques, ICMMO (CNRS UMR 8182) , Université Paris-Sud, Université Paris-Saclay , Bâtiment 410 , F-91405 Orsay , France
| | - Karunakar Reddy Bonepally
- Méthodologie, Synthèse et Molécules Thérapeutiques, ICMMO (CNRS UMR 8182) , Université Paris-Sud, Université Paris-Saclay , Bâtiment 410 , F-91405 Orsay , France
| | - Alan Jeuken
- WestCHEM, School of Chemistry , University of Glasgow , Joseph Black Building, University Avenue , Glasgow G12 8QQ , U.K
| | - Aurélien Tap
- Faculté de Pharmacie (CNRS UMR 8638) , Université Paris Descartes , 4 avenue de l'Observatoire , F-75270 Paris 06 , France
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (CNRS UMR 8182) , Université Paris-Sud, Université Paris-Saclay , Bâtiment 420 , F-91405 Orsay , France
| | - Janick Ardisson
- Faculté de Pharmacie (CNRS UMR 8638) , Université Paris Descartes , 4 avenue de l'Observatoire , F-75270 Paris 06 , France
| | - Jean-Pierre Férézou
- Méthodologie, Synthèse et Molécules Thérapeutiques, ICMMO (CNRS UMR 8182) , Université Paris-Sud, Université Paris-Saclay , Bâtiment 410 , F-91405 Orsay , France
| | - Joëlle Prunet
- WestCHEM, School of Chemistry , University of Glasgow , Joseph Black Building, University Avenue , Glasgow G12 8QQ , U.K
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35
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Recent advances in the development of polycyclic skeletons via Ugi reaction cascades. Mol Divers 2018; 22:503-516. [DOI: 10.1007/s11030-017-9811-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 12/27/2017] [Indexed: 12/20/2022]
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36
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Li L, Li ZL, Gu QS, Wang N, Liu XY. A remote C-C bond cleavage-enabled skeletal reorganization: Access to medium-/large-sized cyclic alkenes. SCIENCE ADVANCES 2017; 3:e1701487. [PMID: 29119139 PMCID: PMC5669612 DOI: 10.1126/sciadv.1701487] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 09/29/2017] [Indexed: 06/07/2023]
Abstract
Although great success has been achieved in selective C-C bond cleavage via the intramolecular radical remote migration process of several carbon-based groups, the development of the radical-based remote vinyl migration process remains a formidable challenge because of the energetically unfavorable process. To address this problem, we report here, for the first time, a novel C-C bond reorganization strategy via an unprecedented radical 1,3-, 1,4-, or 1,5-vinyl migration triggered by various types of fluoroalkylation of alkenes for the efficient realization of 1,2-fluoroalkylalkenylation reaction. This strategy provides an expedient and broadly applicable platform to access skeletally and functionally diverse fluoroalkyl-containing medium- and large-sized cyclic alkenes with excellent chemo-, regio-, and stereoselectivity. The broad substrate scope, which covers distinctly electron-neutral or electron-deficient alkenyl migrating groups and various fluoroalkyl radical precursors, the excellent functional group tolerance, the remarkable selectivity, and the operational simplicity, as well as versatile transformations of the products, make this approach practical and attractive.
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37
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Aderibigbe BA, Green IR, Mabank T, Janse van Rensburg M, Morgans GL, Fernandes MA, Michael JP, van Otterlo WA. Observations concerning the synthesis of heteroatom-containing 9-membered benzo-fused rings by ring-closing metathesis. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.06.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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38
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Affiliation(s)
- Ritabrata Datta
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700
032, India
| | - Subrata Ghosh
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700
032, India
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39
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Roscales S, Plumet J. Ring Rearrangement Metathesis in 7-Oxabicyclo[2.2.1]heptene (7-Oxanorbornene) Derivatives. Some Applications in Natural Product Chemistry. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Metathesis reactions is firmly established as a valuable synthetic tool in organic chemistry, clearly comparable with the venerable Diels-Alder and Wittig reactions and, more recently, with the metal-catalyzed cross-coupling reactions. Metathesis reactions can be considered as a fascinating synthetic methodology, allowing different variants regarding substrate (alkene and alkyne metathesis) and type of metathetical reactions. On the other hand, tandem metathesis reactions such Ring Rearrangement Metathesis (RRM) and the coupling of metathesis reaction with other reactions of alkenes such as Diels-Alder or Heck reactions, makes metathesis one of the most powerful and reliable synthetic procedure.In particular, Ring-Rearrangement Metathesis (RRM) refers to the combination of several metathesis transformations into a domino process such as ring-opening metathesis (ROM)/ring-closing metathesis (RCM) and ROM-cross metathesis (CM) in a one-pot operation. RRM delivers complex frameworks that are difficult to assemble by conventional methods constitutingan atom economic process. RRM is applicable to mono- and polycyclic systems of varying ring sizes such as cyclopropene, cyclobutene, cyclopentene, cyclohexene, pyran systems, bicyclo[2.2.1]heptene derivatives, bicyclo[2.2.2]octene derivatives, bicyclo[3.2.1]octene derivatives and bicyclo[3.2.1]octene derivatives.In this review our attention has focused on the RRM reactions in 7-oxabicyclo[2.2.1]heptene derivatives and on their application in the synthesis of natural products or significant subunits of them.
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Affiliation(s)
- Silvia Roscales
- Technological Institute Pet, 10 Manuel Bartolomé Cossio St, 28040 Madrid, Spain
| | - Joaquín Plumet
- Complutense University, Faculty of Chemistry, Organic Chemistry Department, Ciudad Universitaria, 28040, Madrid, Spain
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40
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Shim SY, Cho SM, Venkateswarlu A, Ryu DH. Catalytic Enantioselective Synthesis of 2,5-Dihydrooxepines. Angew Chem Int Ed Engl 2017; 56:8663-8666. [DOI: 10.1002/anie.201700890] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Su Yong Shim
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
| | - Soo Min Cho
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
| | | | - Do Hyun Ryu
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
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41
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Shim SY, Cho SM, Venkateswarlu A, Ryu DH. Catalytic Enantioselective Synthesis of 2,5-Dihydrooxepines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700890] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Su Yong Shim
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
| | - Soo Min Cho
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
| | | | - Do Hyun Ryu
- Department of Chemistry; Sungkyunkwan University; Suwon 440-746 Korea
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42
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Walsh JJ, Lenes JM, Weisberg RH, Zheng L, Hu C, Fanning KA, Snyder R, Smith J. More surprises in the global greenhouse: Human health impacts from recent toxic marine aerosol formations, due to centennial alterations of world-wide coastal food webs. MARINE POLLUTION BULLETIN 2017; 116:9-40. [PMID: 28111002 DOI: 10.1016/j.marpolbul.2016.12.053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 12/17/2016] [Accepted: 12/18/2016] [Indexed: 06/06/2023]
Abstract
Reductions of zooplankton biomasses and grazing pressures were observed during overfishing-induced trophic cascades and concurrent oil spills at global scales. Recent phytoplankton increments followed, once Fe-, P-, and N-nutrient limitations of commensal diazotrophs and dinoflagellates were also eliminated by respective human desertification, deforestation, and eutrophication during climate changes. Si-limitation of diatoms instead ensued during these last anthropogenic perturbations of agricultural effluents and sewage loadings. Consequently, ~15% of total world-wide annual asthma trigger responses, i.e. amounting to ~45 million adjacent humans during 2004, resulted from brevetoxin and palytoxin poisons in aerosol forms of western boundary current origins. They were denoted by greater global harmful algal bloom [HAB] abundances and breathing attacks among sea-side children during prior decadal surveys of asthma prevalence, compiled here in ten paired shelf ecosystems of western and eutrophied boundary currents. Since 1965, such inferred onshore fluxes of aerosolized DOC poisons of HABs may have served as additional wind-borne organic carriers of toxic marine MeHg, phthalate, and DDT/DDE vectors, traced by radio-iodine isotopes to potentially elicit carcinomas. During these exchanges, as much as 40% of mercury poisonings may instead have been effected by inhalation of collateral HAB-carried marine neurotoxic aerosols of MeHg, not just from eating marine fish. Health impacts in some areas were additional asthma and pneumonia episodes, as well as endocrine disruptions among the same adjacent humans, with known large local rates of thyroid cancers, physician-diagnosed pulmonary problems, and ubiquitous high indices of mercury in hair, pesticides in breast milk, and phthalates in urine.
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Affiliation(s)
- J J Walsh
- College of Marine Science, University of South Florida, St. Petersberg, FL 33701, United States.
| | - J M Lenes
- College of Marine Science, University of South Florida, St. Petersberg, FL 33701, United States
| | - R H Weisberg
- College of Marine Science, University of South Florida, St. Petersberg, FL 33701, United States
| | - L Zheng
- College of Marine Science, University of South Florida, St. Petersberg, FL 33701, United States
| | - C Hu
- College of Marine Science, University of South Florida, St. Petersberg, FL 33701, United States
| | - K A Fanning
- College of Marine Science, University of South Florida, St. Petersberg, FL 33701, United States
| | - R Snyder
- Virginia Institute of Marine Science Eastern Shore Laboratory, Wachapreague, VA 23480, United States
| | - J Smith
- Department of Radiology, School of Medicine, University of Alabama, Birmingham, AL 35294, United States
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Rankin SS, Caldwell JJ, Cronin NB, van Montfort RLM, Collins I. Synthesis of a Ribose-Incorporating Medium Ring Scaffold via a Challenging Ring-Closing Metathesis Reaction. European J Org Chem 2017; 2016:4496-4507. [PMID: 28042283 PMCID: PMC5157775 DOI: 10.1002/ejoc.201600756] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Indexed: 11/21/2022]
Abstract
A practical synthesis of a novel oxabicyclo[6.2.1]undecenetriol useful as a medicinal chemistry scaffold has been developed starting from l‐ribose. The sequence involves an oxidation/Grignard addition sequence and a challenging ring‐closing metathesis (RCM) reaction as the ring forming step. Exploration of the RCM substrate protecting groups revealed the key factor for successful nine‐membered medium ring formation to be conformational bias of the reacting alkenes of the RCM substrate by very bulky silyl ether protecting groups. The synthesis also allowed access to an epimeric triol and saturated and unsaturated variants of the nine‐membered ring. The medium ring conformation of the oxabicyclo[6.2.1]undecenetriol was determined by X‐ray crystallography and correlated to the solution state conformation by NMR experiments.
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Affiliation(s)
- Stuart S Rankin
- Cancer Research UK Cancer Therapeutics Unit The Institute of Cancer Research SM2 5NG London United Kingdom
| | - John J Caldwell
- Cancer Research UK Cancer Therapeutics Unit The Institute of Cancer Research SM2 5NG London United Kingdom
| | - Nora B Cronin
- Division of Structural Biology The Institute of Cancer Research SW7 3RP London United Kingdom
| | - Rob L M van Montfort
- Division of Structural Biology The Institute of Cancer Research SW7 3RP London United Kingdom
| | - Ian Collins
- Cancer Research UK Cancer Therapeutics Unit The Institute of Cancer Research SM2 5NG London United Kingdom
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Hernández-Torres G, Mateo J, Colobert F, Urbano A, Carreño MC. Synthesis of Medium-Sized 2,ω-cis-Disubstituted Cyclic Ethers by Reductive Cyclization of Hydroxy Ketones. ChemistrySelect 2016. [DOI: 10.1002/slct.201601161] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gloria Hernández-Torres
- Departamento de Química Orgánica (Módulo 01), Fac. Ciencias; Universidad Autónoma de Madrid; c/ Francisco Tomás y Valiente 7, Cantoblanco 28049- Madrid Spain
| | - Julio Mateo
- Departamento de Química Orgánica (Módulo 01), Fac. Ciencias; Universidad Autónoma de Madrid; c/ Francisco Tomás y Valiente 7, Cantoblanco 28049- Madrid Spain
| | - FranÇoise Colobert
- Laboratoire de Synthèse et Catalyse Asymétrique; Université de Strasbourg (ECPM), UMR CNRS 7509; 25 rue Becquerel 67087 Strasbourg Cedex 02 France
| | - Antonio Urbano
- Departamento de Química Orgánica (Módulo 01), Fac. Ciencias; Universidad Autónoma de Madrid; c/ Francisco Tomás y Valiente 7, Cantoblanco 28049- Madrid Spain
| | - M. Carmen Carreño
- Departamento de Química Orgánica (Módulo 01), Fac. Ciencias; Universidad Autónoma de Madrid; c/ Francisco Tomás y Valiente 7, Cantoblanco 28049- Madrid Spain
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45
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Hall JE, Matlock JV, Ward JW, Gray KV, Clayden J. Medium-Ring Nitrogen Heterocycles through Migratory Ring Expansion of Metalated Ureas. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605714] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Jessica E. Hall
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | | | - John W. Ward
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Katharine V. Gray
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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46
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Hall JE, Matlock JV, Ward JW, Gray KV, Clayden J. Medium-Ring Nitrogen Heterocycles through Migratory Ring Expansion of Metalated Ureas. Angew Chem Int Ed Engl 2016; 55:11153-7. [DOI: 10.1002/anie.201605714] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Jessica E. Hall
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | | | - John W. Ward
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Katharine V. Gray
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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47
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Li Z, Zhao Y, Tian G, He Y, Song G, Van Meervelt L, Van der Eycken EV. Synthesis of novel imidazole-based triheterocycles via a domino Ugi/Michael reaction and silver-catalyzed heteroannulation. RSC Adv 2016. [DOI: 10.1039/c6ra23180b] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient and diversity-oriented synthetic strategy for novel triheterocyclic imidazo-pyrrolo-pyrazine/diazepine/diazocine derivatives is elaborated.
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Affiliation(s)
- Zhenghua Li
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Yaping Zhao
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
- Shanghai Key Laboratory of Chemical Biology
| | - Guilong Tian
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Yi He
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
| | - Gonghua Song
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
- Shanghai Key Laboratory of Chemical Biology
| | | | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- University of Leuven (KU Leuven)
- B-3001 Leuven
- Belgium
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48
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Datta R, Dixon RJ, Ghosh S. A convenient access to the tricyclic core structure of hippolachnin A. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.11.045] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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49
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Lafaye K, Bosset C, Nicolas L, Guérinot A, Cossy J. Beyond catalyst deactivation: cross-metathesis involving olefins containing N-heteroaromatics. Beilstein J Org Chem 2015; 11:2223-41. [PMID: 26664645 PMCID: PMC4660986 DOI: 10.3762/bjoc.11.241] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 10/20/2015] [Indexed: 11/23/2022] Open
Abstract
Alkenes containing N-heteroaromatics are known to be poor partners in cross-metathesis reactions, probably due to catalyst deactivation caused by the presence of a nitrogen atom. However, some examples of ring-closing and cross-metathesis involving alkenes that incorporate N-heteroaromatics can be found in the literature. In addition, recent mechanistic studies have focused on the rationalization of nitrogen-induced catalysts deactivation. The purpose of this mini-review is to give a brief overview of successful metathesis reactions involving olefins containing N-heteroaromatics in order to delineate some guidelines for the use of these challenging substrates in metathesis reactions.
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Affiliation(s)
- Kevin Lafaye
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI)-UMR 8231 ESPCI ParisTech, CNRS, PSL Research University, 10, rue Vauquelin, 75231 Paris Cedex 05, France
| | - Cyril Bosset
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI)-UMR 8231 ESPCI ParisTech, CNRS, PSL Research University, 10, rue Vauquelin, 75231 Paris Cedex 05, France
| | - Lionel Nicolas
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI)-UMR 8231 ESPCI ParisTech, CNRS, PSL Research University, 10, rue Vauquelin, 75231 Paris Cedex 05, France
| | - Amandine Guérinot
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI)-UMR 8231 ESPCI ParisTech, CNRS, PSL Research University, 10, rue Vauquelin, 75231 Paris Cedex 05, France
| | - Janine Cossy
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI)-UMR 8231 ESPCI ParisTech, CNRS, PSL Research University, 10, rue Vauquelin, 75231 Paris Cedex 05, France
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50
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Liang L, Li E, Dong X, Huang Y. DABCO-Mediated [4 + 4]-Domino Annulation: Access to Functionalized Eight-Membered Cyclic Ethers. Org Lett 2015; 17:4914-7. [DOI: 10.1021/acs.orglett.5b02498] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ling Liang
- State Key Laboratory and
Institute of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 30071, China
| | - Erqing Li
- State Key Laboratory and
Institute of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 30071, China
| | - Xuelin Dong
- State Key Laboratory and
Institute of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 30071, China
| | - You Huang
- State Key Laboratory and
Institute of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 30071, China
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