1
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Wang Z, Chen J, Yu L, Zhang C, Rao W, Chan PWH. Gold-Catalyzed Cascade Cycloisomerization of 3-Allyloxy-1,6-diynes to Cyclopropyl- and Cyclobutyl-Fused Benzofurans and Chromen-3a(1 H)-ols. Org Lett 2024; 26:2635-2640. [PMID: 38526487 DOI: 10.1021/acs.orglett.4c00705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
A synthetic method for the efficient preparation of partially hydrogenated benzo[f]cyclobuta[cd]cyclopenta[h]benzofurans and cyclopropa[c]chromen-3a(1H)-ols that relies on the gold(I)-catalyzed cascade cycloisomerization of 3-allyloxy-1,6-diynes is described.
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Affiliation(s)
- Zeliang Wang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Jichao Chen
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Lei Yu
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Chunyu Zhang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Weidong Rao
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
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2
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Tong Z, Smith PJ, Pickford HD, Christensen KE, Anderson EA. Gold-Catalyzed Cyclization of Yndiamides with Isoxazoles via α-Imino Gold Fischer Carbenes. Chemistry 2023; 29:e202302821. [PMID: 37767940 PMCID: PMC10947298 DOI: 10.1002/chem.202302821] [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: 08/29/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 09/29/2023]
Abstract
Gold catalysis is an important method for alkyne functionalization. Here we report the gold-catalyzed formal [3+2] aminative cyclization of yndiamides and isoxazoles in a direct synthesis of polysubstituted diaminopyrroles, which are important motifs in drug discovery. Key to this process is the formation, and subsequent cyclization, of an α-imino gold Fischer carbene, which represents a new type of gold carbene intermediate. The reaction proceeds rapidly under mild conditions, with high regioselectivity being achieved by introducing a subtle steric bias between the nitrogen substituents on the yndiamide. DFT calculations revealed that the key to this regioselectivity was the interconversion of isomeric gold keteniminiun ions via a low-barrier π-complex transition state, which establishes a Curtin-Hammett scenario for isoxazole addition. By using benzisoxazoles as substrates, the reaction outcome could be switched to a formal [5+2] cyclization, leading to 1,4-oxazepines.
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Affiliation(s)
- Zixuan Tong
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Philip J. Smith
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Helena D. Pickford
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Kirsten E. Christensen
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
| | - Edward A. Anderson
- Chemistry Research LaboratoryDepartment of ChemistryUniversity of Oxford12 Mansfield RoadOxfordOX1 3TAUK
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3
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Zheng Y, Jiang J, Li Y, Wei Y, Zhang J, Hu J, Ke Z, Xu X, Zhang L. Reactivities of α-Oxo BMIDA Gold Carbenes Generated by Gold-Catalyzed Oxidation of BMIDA-Terminated Alkynes. Angew Chem Int Ed Engl 2023; 62:e202218175. [PMID: 36806835 PMCID: PMC10079581 DOI: 10.1002/anie.202218175] [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: 12/09/2022] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 02/22/2023]
Abstract
An oxidative strategy is reported to access α-oxo BMIDA gold carbenes directly from BMIDA-terminated alkynes. Besides offering expedient access to seldom studied boryl metal carbenes, these BMIDA gold carbene species undergo facile insertions into methyl, methylene, methine, and benzylic C-H bonds in the absence of the Thorpe-Ingold effect. They also undergo efficient OH insertion, cyclopropanation, and F-C alkylations. This chemistry provides rapid access to structurally diverse α-BMIDA ketones, which are scarcely documented. In combination with DFT studies, the role of BMIDA is established to be an electron-donating group that attenuates the high electrophilicity of the gold carbene center.
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Affiliation(s)
- Yang Zheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
| | - Jingxing Jiang
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Yue Li
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
| | - Yongliang Wei
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
| | - Junqi Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
| | - Jundie Hu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Zhuofeng Ke
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Xinfang Xu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
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4
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Pang Q, Zuo WF, Zhang Y, Li X, Han B. Recent Advances on Direct Functionalization of Indoles in Aqueous Media. CHEM REC 2023; 23:e202200289. [PMID: 36722727 DOI: 10.1002/tcr.202200289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/15/2023] [Indexed: 02/02/2023]
Abstract
Indoles and their derivatives have dominated a significant proportion of nitrogen-containing heterocyclic compounds and play an essential role in synthetic and medicinal chemistry, pesticides, and advanced materials. Compared with conventional synthetic strategies, direct functionalization of indoles provides straightforward access to construct diverse indole scaffolds. As we enter an era emphasizing green and sustainable chemistry, utilizing environment-friendly solvents represented by water demonstrates great potential in synthesizing valuable indole derivatives. This review aims to depict the critical aspects of aqueous-mediated indoles functionalization over the past decade and discusses the future challenges and prospects in this fast-growing field. For the convenience of readers, this review is classified into three parts according to the bonding modes (C-C, C-N, and C-S bonds), which focus on the diversity of indole derivatives, the prominent role of water in the chemical process, and the types of catalyst systems and mechanisms. We hope this review can promote the sustainable development of the direct functionalization of indoles and their derivatives and the discovery of novel and practical organic methods in aqueous phase.
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Affiliation(s)
- Qiwen Pang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Wei-Fang Zuo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yang Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiang Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
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5
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Jiang XL, Liu Q, Wei KF, Zhang TT, Ma G, Zhu XH, Ru GX, Liu L, Hu LR, Shen WB. Copper-catalyzed alkyne oxidation/Büchner-type ring-expansion to access benzo[6,7]azepino[2,3-b]quinolines and pyridine-based diones. Commun Chem 2023; 6:35. [PMID: 36807326 PMCID: PMC9941089 DOI: 10.1038/s42004-023-00840-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/13/2023] [Indexed: 02/22/2023] Open
Abstract
General access to highly valuable seven-membered rings via Büchner-type reaction remains a formidable challenge. Here we report a Cu-catalyzed intermolecular oxidation of alkynes using N-oxides as oxidants, which enables expedient preparation of valuable benzo[6,7]azepino[2,3-b]quinolines and pyridine-based diones. Importantly, in contrast to the well-established gold-catalyzed intermolecular alkyne oxidation, the dissociated pyridine or quinoline partner could be further utilized to construct N-heterocycles in this system and the reaction most likely proceeds by a Büchner-type ring expansion pathway. A mechanistic rationale for this cascade cyclization is supported by DFT calculations.
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Affiliation(s)
- Xiao-Lei Jiang
- grid.108266.b0000 0004 1803 0494College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, 450002 China ,Sanmenxia Polytechnic, Sanmenxia, Henan 472000 China
| | - Qing Liu
- grid.108266.b0000 0004 1803 0494College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, 450002 China
| | - Kua-Fei Wei
- grid.108266.b0000 0004 1803 0494College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, 450002 China
| | - Ting-Ting Zhang
- grid.108266.b0000 0004 1803 0494College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, 450002 China
| | - Guang Ma
- grid.108266.b0000 0004 1803 0494College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, 450002 China
| | - Xiu-Hong Zhu
- grid.108266.b0000 0004 1803 0494College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, 450002 China
| | - Guang-Xin Ru
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Lijie Liu
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Lian-Rui Hu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Shanghai Frontiers Science Center of Molecule Intelligent Syntheses, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China.
| | - Wen-Bo Shen
- College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, 450002, China.
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6
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Gutiérrez S, Tomás-Gamasa M, Mascareñas JL. Organometallic catalysis in aqueous and biological environments: harnessing the power of metal carbenes. Chem Sci 2022; 13:6478-6495. [PMID: 35756533 PMCID: PMC9172117 DOI: 10.1039/d2sc00721e] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 05/15/2022] [Indexed: 11/24/2022] Open
Abstract
Translating the power of transition metal catalysis to the native habitats of enzymes can significantly expand the possibilities of interrogating or manipulating natural biological systems, including living cells and organisms. This is especially relevant for organometallic reactions that have shown great potential in the field of organic synthesis, like the metal-catalyzed transfer of carbenes. While, at first sight, performing metal carbene chemistry in aqueous solvents, and especially in biologically relevant mixtures, does not seem obvious, in recent years there has been a growing number of reports demonstrating the feasibility of the task. Either using small molecule metal catalysts or artificial metalloenzymes, a number of carbene transfer reactions that tolerate aqueous and biorelevant media are being developed. This review intends to summarize the most relevant contributions, and establish the state of the art in this emerging research field.
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Affiliation(s)
- Sara Gutiérrez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela 15705 Santiago de Compostela Spain
| | - María Tomás-Gamasa
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela 15705 Santiago de Compostela Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela 15705 Santiago de Compostela Spain
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7
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Cheng X, Wang L, Liu Y, Wan X, Xiang Z, Li R, Wan X. Molecular Iodine‐Catalysed Reductive Alkylation of Indoles: Late‐Stage Diversification for Bioactive Molecules. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200502] [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)
- Xionglve Cheng
- Soochow University College of Chemistry, Chemical Engineering and Materials Science 215123 Suzhou CHINA
| | - Lili Wang
- Soochow University College of Chemistry, Chemical Engineering and Materials Science 215123 Suzhou CHINA
| | - Yide Liu
- Soochow University College of Chemistry, Chemical Engineering and Materials Science 215123 Suzhou CHINA
| | - Xiao Wan
- Soochow University College of Chemistry, Chemical Engineering and Materials Science 215123 Suzhou CHINA
| | - Zixin Xiang
- Soochow University College of Chemistry, Chemical Engineering and Materials Science 215123 Suzhou CHINA
| | - Ruyi Li
- Soochow University College of Chemistry, Chemical Engineering and Materials Science 215123 Suzhou CHINA
| | - Xiaobing Wan
- Soochow University College of Chemistry, Chemical Engineering and Materials Science Renai road 215123 Suzhou CHINA
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8
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Wang H, Hu M, Wang XN, Chang J. Metal-free hydroalkoxylation of ynesulfonamides with alcohols. Org Biomol Chem 2022; 20:3408-3412. [PMID: 35380156 DOI: 10.1039/d2ob00420h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Efforts for developing a convenient and expeditious method for synthesizing alkoxy-substituted enamides via nucleophilic addition of alcohols to ynesulfonamides are described. This sequence is completely regioselective and highly stereoselective, and leads to the hydroalkoxylation products in high yields under mild reaction conditions.
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Affiliation(s)
- Hanhan Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Mengjun Hu
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China.
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9
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Shi C, Zhou JJ, Hong P, Zhu BH, Hong FL, Qian PC, Sun Q, Lu X, Ye LW. Efficient synthesis of tetracyclic γ-lactams via gold-catalyzed oxidative cyclization of alkenyl diynes. Org Chem Front 2022. [DOI: 10.1039/d2qo00123c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient gold-catalyzed cascade cyclization of alkenyl diynes involving alkyne oxidation, carbene-alkyne metathesis and cyclopropanation has been developed, furnishing a series of tetracyclic γ-lactams bearing one quaternary carbon center and...
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10
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Shcherbakov NV, Dar'in DV, Kukushkin VY, Dubovtsev AY. Gold-Catalyzed Nitrene Transfer from Benzofuroxans to N-Allylynamides: Synthesis of 3-Azabicyclo[3.1.0]hexanes. J Org Chem 2021; 86:12964-12972. [PMID: 34472847 DOI: 10.1021/acs.joc.1c01654] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The gold-catalyzed reaction between benzofuroxans, functioning as nitrene transfer reagents, and N-allylynamides leads to 3-azabicyclo[3.1.0]hexan-2-imines. This highly selective annulation proceeds smoothly under mild conditions (5 mol % Ph3PAuNTf2, PhCl, 60 °C) and exhibits high functional group tolerance (21 examples, ≤96% yields). The obtained cyclopropanated products represent a useful synthetic platform with an easily modulated substitution pattern as illustrated by their postmodifications. Intramolecular cyclopropanation of gold α-imino carbene intermediates is suggested as a key step of the catalytic cycle.
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Affiliation(s)
- Nikolay V Shcherbakov
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Dmitry V Dar'in
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Vadim Yu Kukushkin
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Alexey Yu Dubovtsev
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
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11
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Zhou S, Li Y, Liu X, Hu W, Ke Z, Xu X. Enantioselective Oxidative Multi-Functionalization of Terminal Alkynes with Nitrones and Alcohols for Expeditious Assembly of Chiral α-Alkoxy-β-amino-ketones. J Am Chem Soc 2021; 143:14703-14711. [PMID: 34463096 DOI: 10.1021/jacs.1c06178] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Catalytic oxidative functionalization of alkynes has emerged as an effective method in synthetic chemistry in recent decades. However, enantioselective transformations via metal carbene intermediates are quite rare due to the lack of robust chiral catalysts, especially in the intermolecular versions. Herein, we report the first asymmetric three-component reaction of commercially available alkynes with nitrones and alcohols, which affords α-alkoxy-β-amino-ketones in good yields with high to excellent enantioselectivity using combined catalysis by an achiral gold complex and a chiral spiro phosphoric acid (CPA). Mechanistically, this atom-economic reaction involves a catalytic alkyne oxidation/ylide formation/Mannich-type addition sequence that uses nitrone as the oxidant and the leaving fragment imine as the electrophile, providing a novel method for multi-functionalization of commercially available terminal alkynes.
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Affiliation(s)
- Su Zhou
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yinwu Li
- School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Xiangrong Liu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Wenhao Hu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhuofeng Ke
- School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Xinfang Xu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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12
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Shandilya S, Protim Gogoi M, Dutta S, Sahoo AK. Gold-Catalyzed Transformation of Ynamides. CHEM REC 2021; 21:4123-4149. [PMID: 34432929 DOI: 10.1002/tcr.202100159] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/27/2021] [Indexed: 11/07/2022]
Abstract
Ynamide, a unique species with inherited polarization of nitrogen lone pair electron to triple bond, has been largely used for the developement of novel synthetic methods and the construction of unusual N-bearing heterocycles. The reaction versatility of ynamide on umpolung reactivity, radical reactions and asymmetric synthesis have been recently reviewed. This review provides an overall scenic view into the gold catalyzed transformation of ynamides. The ynamides reactivity towards nitrogen-transfer reagents, such as azides, nitrogen ylides, isoxazoles, and anthranils; oxygen atom-transfer reagents, like nitrones, sulfoxides, and pyridine N-oxides; and carbon nucleophiles under gold catalysis are herein uncovered. The scope as well the mechanistic insights of each reaction is also briefed.
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Affiliation(s)
| | | | - Shubham Dutta
- School of Chemistry, University of Hyderabad, 500046, Hyderabad, India
| | - Akhila K Sahoo
- School of Chemistry, University of Hyderabad, 500046, Hyderabad, India
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13
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Tong Z, Garry OL, Smith PJ, Jiang Y, Mansfield SJ, Anderson EA. Au(I)-Catalyzed Oxidative Functionalization of Yndiamides. Org Lett 2021; 23:4888-4892. [DOI: 10.1021/acs.orglett.1c01625] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zixuan Tong
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| | - Olivia L. Garry
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| | - Philip J. Smith
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| | - Yubo Jiang
- Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China
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14
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Gao E, Peng C, Zhang J, Wang XN, Chang J. Metal-free hydroalkoxylation of ynesulfonamides with esters. Org Biomol Chem 2021; 19:2182-2185. [PMID: 33599674 DOI: 10.1039/d0ob02575e] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient metal-free hydroalkoxylation reaction of ynesulfonamides with esters under mild conditions is described. Under the catalysis of TMSOTf, various ynesulfonamides are transformed into the corresponding alkoxy-substituted enamides in high yields with complete regioselectivity and high to excellent stereoselectivity.
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Affiliation(s)
- Erhui Gao
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Cheng Peng
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Jingyi Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China.
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15
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Tanpure SD, Kale BS, Liu RS. Gold(I)-Catalyzed Oxidative 1,4-Additions of 3-En-1-ynamide with Nitrones via Carbon- versus Nitrogen-Addition Chemoselectivity. Org Lett 2021; 23:1394-1399. [PMID: 33544607 DOI: 10.1021/acs.orglett.1c00055] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This work reports gold-catalyzed 1,4-oxofunctionalizations of 3-en-1-ynamides with nitrones, yielding two distinct E-configured products. We obtained 1,4-oxoarylation products from 3-en-1-ynamides bearing C(4)-electron-donating substituents and 1,4-oxoamination products from those analogues bearing C(4)-aryl substituents. We propose that if vinylgold carbenes are stable, imines undergo a para-arylation on these gold carbenes. If vinylgold carbenes are highly electron-deficient, this N-attack is irreversible to enable 1,4-oxoaminations.
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Affiliation(s)
- Sudhakar Dattatray Tanpure
- Frontier Research Center of Matter Science and Technology, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
| | - Balaji S Kale
- Frontier Research Center of Matter Science and Technology, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
| | - Rai-Shung Liu
- Frontier Research Center of Matter Science and Technology, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC
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16
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Zheng Z, Ma X, Cheng X, Zhao K, Gutman K, Li T, Zhang L. Homogeneous Gold-Catalyzed Oxidation Reactions. Chem Rev 2021; 121:8979-9038. [DOI: 10.1021/acs.chemrev.0c00774] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Zhitong Zheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Xu Ma
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Xinpeng Cheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Ke Zhao
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Kaylaa Gutman
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Tianyou Li
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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17
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Zhao L, Yang H, Li R, Tao Y, Guo XF, Anderson EA, Whiting A, Wu N. Synthesis of Sulfonamide-Based Ynamides and Ynamines in Water. J Org Chem 2021; 86:1938-1947. [PMID: 33356269 DOI: 10.1021/acs.joc.0c02326] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ynamides, though relatively more stable than ynamines, are still moisture-sensitive and prone to hydration especially under acidic and heating conditions. Here we report an environmentally benign, robust protocol to synthesize sulfonamide-based ynamides and arylynamines via Sonogashira coupling reactions in water, using a readily available quaternary ammonium salt as the surfactant.
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Affiliation(s)
- Lei Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Hongyi Yang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Ruikun Li
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Ye Tao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Science, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Xiao-Feng Guo
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
| | - Edward A Anderson
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Andrew Whiting
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, U.K
| | - Na Wu
- School of Chemistry and Bioscience, University of Bradford, Bradford, West Yorkshire BD7 1DP, U.K
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18
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Zimin DP, Dar’in DV, Kukushkin VY, Dubovtsev AY. Oxygen Atom Transfer as Key To Reverse Regioselectivity in the Gold(I)-Catalyzed Generation of Aminooxazoles from Ynamides. J Org Chem 2020; 86:1748-1757. [DOI: 10.1021/acs.joc.0c02584] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Dmitry P. Zimin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Dmitry V. Dar’in
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Vadim Yu. Kukushkin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
- South Ural State University, 76, Lenin Av., Chelyabinsk 454080, Russian Federation
| | - Alexey Yu. Dubovtsev
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
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19
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Campeau D, León Rayo DF, Mansour A, Muratov K, Gagosz F. Gold-Catalyzed Reactions of Specially Activated Alkynes, Allenes, and Alkenes. Chem Rev 2020; 121:8756-8867. [DOI: 10.1021/acs.chemrev.0c00788] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Dominic Campeau
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, K1N 6N5 Ottawa, Canada
| | - David F. León Rayo
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, K1N 6N5 Ottawa, Canada
| | - Ali Mansour
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, K1N 6N5 Ottawa, Canada
| | - Karim Muratov
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, K1N 6N5 Ottawa, Canada
| | - Fabien Gagosz
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, K1N 6N5 Ottawa, Canada
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20
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Er(OTf)3-catalyzed approach to 3-alkenylindoles through regioselective addition of ynamides and indoles. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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21
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McLean EB, Cutolo FM, Cassidy OJ, Burns DJ, Lee AL. Selectivity Control in Gold-Catalyzed Hydroarylation of Alkynes with Indoles: Application to Unsymmetrical Bis(indolyl)methanes. Org Lett 2020; 22:6977-6981. [PMID: 32845648 DOI: 10.1021/acs.orglett.0c02526] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Gold-catalyzed hydroarylation of unactivated alkynes with indoles have previously been reported to proceed with double indole addition to produce symmetrical bis(indolyl)methanes (BIMs). We demonstrate for the first time that the selectivity of the gold-catalyzed reaction can be fully switched to allow for isolation of the vinylindole products instead. Furthermore, this selective reaction can be utilized to synthesize the more difficult to access unsymmetrical BIMs from readily available starting materials.
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Affiliation(s)
- Euan B McLean
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, U.K
| | - Francesca M Cutolo
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, U.K
| | - Orla J Cassidy
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, U.K
| | - David J Burns
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire RG42 6EY, U.K
| | - Ai-Lan Lee
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, U.K
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22
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Ye LW, Zhu XQ, Sahani RL, Xu Y, Qian PC, Liu RS. Nitrene Transfer and Carbene Transfer in Gold Catalysis. Chem Rev 2020; 121:9039-9112. [PMID: 32786423 DOI: 10.1021/acs.chemrev.0c00348] [Citation(s) in RCA: 173] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Catalytic transformations involving metal carbenes are considered one of the most important aspects of homogeneous transition metal catalysis. Recently, gold-catalyzed generation of gold carbenes from readily available alkynes represents a significant advance in metal carbene chemistry. This Review summarizes the advances in the gold-catalyzed nitrene-transfer reactions of alkynes with nitrogen-transfer reagents, such as azides, nitrogen ylides, isoxazoles, and anthranils, and gold-catalyzed carbene-transfer reactions, involving oxygen atom-transfer reactions of alkynes with nitro compounds, nitrones, sulfoxides, and pyridine N-oxides, through the presumable α-imino gold carbene and α-oxo gold carbene intermediates, respectively. Gold-catalyzed processes are reviewed by highlighting their product diversity, selectivity, and applicability, and the mechanistic rationale is presented where possible.
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Affiliation(s)
- Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
| | - Xin-Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Rajkumar Lalji Sahani
- Department of Chemistry, National Tsing-Hua University, Hsinchu 30013, Taiwan, Republic of China
| | - Yin Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Peng-Cheng Qian
- Institute of New Materials & Industry Technology, College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Rai-Shung Liu
- Department of Chemistry, National Tsing-Hua University, Hsinchu 30013, Taiwan, Republic of China
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23
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Bhunia S, Ghosh P, Patra SR. Gold‐Catalyzed Oxidative Alkyne Functionalization by N−O/S−O/C−O Bond Oxidants. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000274] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sabyasachi Bhunia
- Department of Chemistry Central University of Jharkhand Ranchi Jharkhand 835205 India
| | - Partha Ghosh
- Department of Chemistry Central University of Jharkhand Ranchi Jharkhand 835205 India
| | - Snigdha Rani Patra
- Department of Chemistry Central University of Jharkhand Ranchi Jharkhand 835205 India
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24
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Um TW, Lee G, Shin S. Enantioselective Synthesis of Tertiary α,α-Diaryl Carbonyl Compounds Using Chiral N,N'-Dioxides under Umpolung Conditions. Org Lett 2020; 22:1985-1990. [PMID: 32045252 DOI: 10.1021/acs.orglett.0c00333] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Brønsted acid-catalyzed addition of the chiral N,N'-dioxide into ynamides generated enolonium ions in situ which underwent enantioselective alkylation by indoles, pyrroles, and phenols, without racemization of the formed tertiary center. This external oxidant approach allows for the use of unmodified nucleophiles and does not leave trace groups from the oxidant, which significantly increases the synthetic efficiency and the product diversity. Furthermore, the byproduct of the N,N'-dioxide could be efficiently recycled into an optically pure form.
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Affiliation(s)
- Tae-Woong Um
- Department of Chemistry, Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
| | - Girim Lee
- Department of Chemistry, Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
| | - Seunghoon Shin
- Department of Chemistry, Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
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25
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Li H, Ye S, Chen Y, Luo W, Qian P, Ye L. Efficient and Divergent Synthesis of Medium‐Sized Lactams through Zinc‐Catalyzed Oxidative Cyclization of Indoly Ynamides
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.201900478] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Hang‐Hao Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
| | - Si‐Han Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
| | - Yang‐Bo Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
| | - Wen‐Feng Luo
- Institute of New Materials & Industry Technology, College of Chemistry & Materials Engineering, Wenzhou University Wenzhou, Zhejiang 325035 China
| | - Peng‐Cheng Qian
- Institute of New Materials & Industry Technology, College of Chemistry & Materials Engineering, Wenzhou University Wenzhou, Zhejiang 325035 China
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian ProvinceCollege of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic ChemistryChinese Academy of Sciences Shanghai 200032 China
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26
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Dubovtsev AY, Shcherbakov NV, Dar’in DV, Kukushkin VY. Nature of the Nucleophilic Oxygenation Reagent Is Key to Acid-Free Gold-Catalyzed Conversion of Terminal and Internal Alkynes to 1,2-Dicarbonyls. J Org Chem 2019; 85:745-757. [DOI: 10.1021/acs.joc.9b02785] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexey Yu. Dubovtsev
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Nikolay V. Shcherbakov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Dmitry V. Dar’in
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Vadim Yu. Kukushkin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
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27
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28
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Jin H, Rudolph M, Rominger F, Hashmi ASK. The Carbocation-Catalyzed Intermolecular Formal [2 + 2 + 1] Cycloaddition of Ynamides with Quinoxaline N-Oxides. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03911] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Hongming Jin
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
- Chemistry Department, Faculty of Science, King Abdulaziz University (KAU), 21589 Jeddah, Saudi Arabia
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29
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Nguyen QH, Nguyen NH, Kim H, Shin S. Synthesis of γ-substituted carbonyl compounds from DMSO-mediated oxidation of enynamides: mechanistic insights and carbon- and hetero-functionalizations. Chem Sci 2019; 10:8799-8805. [PMID: 31803452 PMCID: PMC6849631 DOI: 10.1039/c9sc03663f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 08/04/2019] [Indexed: 02/05/2023] Open
Abstract
1,3-Enynamides underwent oxygenative coupling with carbon- and heteroatom nucleophiles with high remote selectivity. Kinetic analysis revealed a continuum mechanism between concerted SN2′′ and via a carbocation, depending on the nucleophiles used.
Oxidative coupling of 1,3-enynamides using DMSO as a terminal oxidant has been developed. Carbon as well as unmodified heteroatom nucleophiles, including aliphatic alcohols, thiols, and hydrazides, could be efficiently alkylated at the γ-position in a highly regioselective fashion. The kinetic analysis suggested a nucleophile-dependent mechanism ranging from a concerted SN2′′ to a carbocationic mechanism. Thus, the remote site-selectivity was ascribed to the partial positive charge developing at the terminal carbocationic center.
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Affiliation(s)
- Quynh H Nguyen
- Department of Chemistry , Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS) , Hanyang University , 222 Wangsimni-ro, Seongdong-gu , Seoul 04763 , Korea .
| | - Nguyen H Nguyen
- Department of Chemistry , Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS) , Hanyang University , 222 Wangsimni-ro, Seongdong-gu , Seoul 04763 , Korea .
| | - Hanbyul Kim
- Department of Chemistry , Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS) , Hanyang University , 222 Wangsimni-ro, Seongdong-gu , Seoul 04763 , Korea .
| | - Seunghoon Shin
- Department of Chemistry , Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS) , Hanyang University , 222 Wangsimni-ro, Seongdong-gu , Seoul 04763 , Korea .
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30
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Li X, Zhou G, Du X, Wang T, Zhang Z. Catalyst- and Additive-Free Cascade Reaction of Isoquinoline N-Oxides with Alkynones: An Approach to Benzoazepino[2,1-a]isoquinoline Derivatives. Org Lett 2019; 21:5630-5633. [PMID: 31287323 DOI: 10.1021/acs.orglett.9b01966] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xuetong Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, No. 620 West Chang’an Avenue, Xi’an 710119, China
| | - Guanghua Zhou
- Department of Chemistry, Nanchang Normal University, No. 889 Ruixiang Road, Nanchang 330032, China
| | - Xinru Du
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, No. 620 West Chang’an Avenue, Xi’an 710119, China
| | - Tao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, No. 620 West Chang’an Avenue, Xi’an 710119, China
| | - Zunting Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, No. 620 West Chang’an Avenue, Xi’an 710119, China
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31
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Revisiting the mechanism of acetylenic amine N-Oxide rearrangement catalysed by Gold(I) complexes from a DFT perspective. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.03.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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32
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Zhu J, Wang Q, Meng X, Zhao C, Sun X, Tian L, Cao Z. Direct Hydroheteroarylation of Ynamides with 2 H
-Tetrazoles: Regio- and Stereoselective Synthesis of ( Z
)- α
-Tetrazole Enamides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900604] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jiekun Zhu
- School of Chemistry and Chemical Engineering; Qufu Normal University; Qufu 273165 Shandong P. R. China
| | - Qingbo Wang
- School of Chemistry and Chemical Engineering; Qufu Normal University; Qufu 273165 Shandong P. R. China
| | - Xin Meng
- School of Chemistry and Chemical Engineering; Qufu Normal University; Qufu 273165 Shandong P. R. China
| | - Changyin Zhao
- School of Chemistry and Chemical Engineering; Qufu Normal University; Qufu 273165 Shandong P. R. China
| | - Xuejun Sun
- School of Chemistry and Chemical Engineering; Qufu Normal University; Qufu 273165 Shandong P. R. China
| | - Laijin Tian
- School of Chemistry and Chemical Engineering; Qufu Normal University; Qufu 273165 Shandong P. R. China
- Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine; Qufu 273165 Shandong P. R. China
| | - Ziping Cao
- School of Chemistry and Chemical Engineering; Qufu Normal University; Qufu 273165 Shandong P. R. China
- Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine; Qufu 273165 Shandong P. R. China
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33
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Affiliation(s)
- Bo Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Tong-De Tan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin-Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Mingzhou Shang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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34
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Li JL, Lin E, Han XL, Li Q, Wang H. Synthesis of α-Fluorinated Imides via Direct Fluorohydroxylation of Ynamides. Org Lett 2019; 21:4255-4258. [PMID: 31095399 DOI: 10.1021/acs.orglett.9b01428] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A practical synthesis of α-fluorinated imides via the catalyst-free fluorohydroxylation of ynamides is developed. The reaction employs commercially available Selectfluor (F-TEDA-BF4) and H2O as the fluorine and hydroxyl sources, respectively. A broad range of aryl- or alkyl-substituted ynamides were well applicable to the reaction with good functional group tolerance under simple and mild reaction conditions. The synthetic utility of the α-fluoroimide products was demonstrated by several value-added transformations. Preliminary mechanistic studies were conducted.
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Affiliation(s)
- Ji-Lin Li
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - E Lin
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Xiang-Lei Han
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Qingjiang Li
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Honggen Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
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35
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Claus V, Molinari L, Büllmann S, Thusek J, Rudolph M, Rominger F, Hashmi ASK. Gold‐Catalyzed Cyclisation by 1,4‐Dioxidation. Chemistry 2019; 25:9385-9389. [DOI: 10.1002/chem.201900996] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Vanessa Claus
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Lise Molinari
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Simon Büllmann
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Jean Thusek
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department, Faculty of ScienceKing Abdulaziz University Jeddah 21589 Saudi Arabia
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36
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Dubovtsev AY, Dar'in DV, Kukushkin VY. Three‐Component [2+2+1] Gold(I)‐Catalyzed Oxidative Generation of Fully Substituted 1,3‐Oxazoles Involving Internal Alkynes. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900097] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Alexey Yu. Dubovtsev
- Saint Petersburg State University Universitetskaya Nab. 7/9 199034 Saint Petersburg Russian Federation
| | - Dmitry V. Dar'in
- Saint Petersburg State University Universitetskaya Nab. 7/9 199034 Saint Petersburg Russian Federation
| | - Vadim Yu. Kukushkin
- Saint Petersburg State University Universitetskaya Nab. 7/9 199034 Saint Petersburg Russian Federation
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37
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Hsu Y, Hsieh S, Liu R. Gold‐Catalyzed Annulations of
N
‐Propargyl Ynamides with Anthranils with Two Distinct Chemoselectivities. Chemistry 2019; 25:5288-5297. [DOI: 10.1002/chem.201806083] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/22/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Yu‐Chen Hsu
- Department of ChemistryNational Tsing-Hua University Hsinchu 30013) Taiwan
| | - Shu‐An Hsieh
- Department of ChemistryNational Tsing-Hua University Hsinchu 30013) Taiwan
| | - Rai‐Shung Liu
- Department of ChemistryNational Tsing-Hua University Hsinchu 30013) Taiwan
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38
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Tang X, Wu N, Zhai R, Wu Z, Mi J, Luo R, Xu Z. Silver(i)-catalyzed addition of pyridine-N-oxides to alkynes: a practical approach for N-alkenoxypyridinium salts. Org Biomol Chem 2019; 17:966-972. [PMID: 30632594 DOI: 10.1039/c8ob02907e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A smooth catalytic approach to N-alkenoxypyridinium salts by using pyridine-N-oxides as the nucleophilic partner with alkynes under acidic conditions has been developed. This method uses different Ag(i) salts, with 5% AgOAc being the most efficient, to provide an efficient, practical and alternative way to obtain valuable N-alkenoxypyridinium salts with good to excellent yields (up to 93%).
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Affiliation(s)
- Xiaodong Tang
- Department of Chemistry, Xuzhou Medical University, Xuzhou 221004, China.
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39
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Anitha M, Shankar M, Kumara Swamy KC. Reactivity of epoxy-ynamides with metal halides: nucleophile (Br/Cl/OH)-assisted tandem intramolecular 5-exo-digor 6-endo-digcyclisation and AgF2-promoted oxidation. Org Chem Front 2019. [DOI: 10.1039/c9qo00027e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Several metal halides (CuBr, LiCl, CuF2, AgF2) react with epoxy-ynamides to afford 1,3-oxazolidines, 1,4-oxazines or 1,2-dioxo-enamides.
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Affiliation(s)
- Mandala Anitha
- School of Chemistry
- University of Hyderabad
- Hyderabad 500 046
- India
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40
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Shu C, Shi CY, Sun Q, Zhou B, Li TY, He Q, Lu X, Liu RS, Ye LW. Generation of Endocyclic Vinyl Carbene Complexes via Gold-Catalyzed Oxidative Cyclization of Terminal Diynes: Toward Naphthoquinones and Carbazolequinones. ACS Catal 2018. [DOI: 10.1021/acscatal.8b04455] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Chao Shu
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Chong-Yang Shi
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qing Sun
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Bo Zhou
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Tian-You Li
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qiao He
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin Lu
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Rai-Shung Liu
- Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan 30013, Republic of China
| | - Long-Wu Ye
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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41
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Zarkoob F, Ariafard A. Mechanistic Elucidation of Gold(I)-Catalyzed Oxidation of a Propargylic Alcohol by a N-Oxide in the Presence of an Imine Using DFT Calculations. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00808] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Fatemeh Zarkoob
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran, Iran
| | - Alireza Ariafard
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran, Iran
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
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42
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Affiliation(s)
- Dilip V. Patil
- Department of Chemistry; Center for New Directions in Organic Synthesis (CNOS); Institution for Natural Sciences; Hanyang University; 222 Wangsimni-ro Seongdong-gu Seoul Korea 14763
| | - Seunghoon Shin
- Department of Chemistry; Center for New Directions in Organic Synthesis (CNOS); Institution for Natural Sciences; Hanyang University; 222 Wangsimni-ro Seongdong-gu Seoul Korea 14763
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43
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Zhu B, Wang C, Su H, Ye L. NaBAr
F
4
‐Catalyzed Oxidative Cyclization of 1,5‐ and 1,6‐Diynes: Efficient and Divergent Synthesis of Functionalized γ‐ and δ‐Lactams. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800437] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bo‐Han Zhu
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
| | - Cai‐Ming Wang
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
| | - Hong‐Yu Su
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
| | - Long‐Wu Ye
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen Fujian 361005 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 China
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44
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Sánchez‐Cantalejo F, Priest JD, Davies PW. A Gold Carbene Manifold to Prepare Fused γ-Lactams by Oxidative Cyclisation of Ynamides. Chemistry 2018; 24:17215-17219. [PMID: 30248205 PMCID: PMC6282577 DOI: 10.1002/chem.201804378] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/14/2018] [Indexed: 01/20/2023]
Abstract
Gold-catalysed oxidative cyclisation reactions of ynamides offer great promise in γ-lactam synthesis but are limited by preferential over-oxidation to form α-keto imides. Evaluating the factors that might limit N-cyclisation pathways led to effective gold-catalysed conditions that allow access to different fused γ-lactams on changing the ynamide N-substituent and accommodate previously incompatible substitution patterns. New and efficient methods for the synthesis of functionalised 3-aryl indoles and cyclohepta[c]pyrrol-1-one derivatives are presented. These conditions illustrate the complementarity of gold catalysis to other metals.
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45
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Li T, Yang P. Au(I)-Catalyzed Access to 1H-Pyrrolo[1,2-a]indol-2(3-H)-ones via Oxidation of Terminal Alkynes. J Org Chem 2018; 83:14751-14757. [DOI: 10.1021/acs.joc.8b02276] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ting Li
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Ping Yang
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
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46
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Zhang YQ, Zhu XQ, Chen YB, Tan TD, Yang MY, Ye LW. Synthesis of Isothiochroman-3-ones via Metal-Free Oxidative Cyclization of Alkynyl Thioethers. Org Lett 2018; 20:7721-7725. [PMID: 30444375 DOI: 10.1021/acs.orglett.8b03462] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel Brønsted acid-catalyzed oxidative C-H functionalization of alkynyl thioethers has been developed. This method allows the practical synthesis of valuable isothiochroman-3-ones in mostly moderate to good yields under mild reaction conditions and features a broad substrate scope and wide functional group tolerance. Moreover, this metal-free oxidation can also be used to promote formal N-H insertion involving an unexpected 1,2-sulfur migration, affording useful 1,4-benzothiazin-3-ones.
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Affiliation(s)
- Ying-Qi Zhang
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Xin-Qi Zhu
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Yang-Bo Chen
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Tong-De Tan
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Ming-Yang Yang
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Long-Wu Ye
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.,State Key Laboratory of Organometallic Chemistry , Chinese Academy of Sciences , Shanghai 200032 , China
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47
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Ma B, Liu L, Zhang J. Gold-Catalyzed Site-Selective C−H Bond Functionalization with Diazo Compounds. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800472] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ben Ma
- School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 China
| | - Lu Liu
- School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 China
| | - Junliang Zhang
- School of Chemistry and Molecular Engineering; East China Normal University; 500 Dongchuan Road Shanghai 200241 China
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48
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Bao M, Qian Y, Su H, Wu B, Qiu L, Hu W, Xu X. Gold(I)-Catalyzed and H 2O-Mediated Carbene Cascade Reaction of Propargyl Diazoacetates: Furan Synthesis and Mechanistic Insights. Org Lett 2018; 20:5332-5335. [PMID: 30148636 DOI: 10.1021/acs.orglett.8b02251] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A novel gold-catalyzed water-mediated carbene cascade reaction of propargyl diazoacetates has been developed. Mechanistic investigation indicates that this reaction is initiated by gold-catalyzed gold-carbene formation followed by an unprecedented 6- endo-dig carbocyclization with tethered alkyne through an oxonium ylide intermediate, terminated by a β-H elimination/protodeauration process to give the aromatized furan products in good to high yields with broad substrate generality. Notably, the proposed gold-carbene intermediates are verified by interception experiments.
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Affiliation(s)
- Ming Bao
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China.,Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Yu Qian
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Han Su
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Bing Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Lihua Qiu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Wenhao Hu
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Xinfang Xu
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China.,Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
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49
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Li J, Xing HW, Yang F, Chen ZS, Ji K. Gold(III)-Catalyzed Regioselective Oxidation/Cycloisomerization of Diynes: An Approach to Fused Furan Derivatives. Org Lett 2018; 20:4622-4626. [DOI: 10.1021/acs.orglett.8b01915] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jian Li
- College of Chemistry and Pharmacy, Northwest A&F University; Shaanxi Key Laboratory of Natural Products & Chemical Biology, 3 Taicheng Road, Yangling, 712100, Shaanxi, P. R. China
| | - Hong-Wen Xing
- College of Chemistry and Pharmacy, Northwest A&F University; Shaanxi Key Laboratory of Natural Products & Chemical Biology, 3 Taicheng Road, Yangling, 712100, Shaanxi, P. R. China
| | - Fang Yang
- College of Chemistry and Pharmacy, Northwest A&F University; Shaanxi Key Laboratory of Natural Products & Chemical Biology, 3 Taicheng Road, Yangling, 712100, Shaanxi, P. R. China
| | - Zi-Sheng Chen
- College of Chemistry and Pharmacy, Northwest A&F University; Shaanxi Key Laboratory of Natural Products & Chemical Biology, 3 Taicheng Road, Yangling, 712100, Shaanxi, P. R. China
| | - Kegong Ji
- College of Chemistry and Pharmacy, Northwest A&F University; Shaanxi Key Laboratory of Natural Products & Chemical Biology, 3 Taicheng Road, Yangling, 712100, Shaanxi, P. R. China
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50
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Lin M, Zhu L, Xia J, Yu Y, Chen J, Mao Z, Huang X. Gold-Catalyzed Oxidative Cyclization of Tryptamine Derived Enynamides: A Stereoselective Approach to Tetracyclic Spiroindolines. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800001] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Meijun Lin
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; Center for Excellence in Molecular Synthesis; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 People's Republic of China
- College of Chemistry and Chemical Engineering; Fujian Normal University; Fuzhou Fujian 350007 People's Republic of China
| | - Lei Zhu
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; Center for Excellence in Molecular Synthesis; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Jiajin Xia
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; Center for Excellence in Molecular Synthesis; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Yinghua Yu
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; Center for Excellence in Molecular Synthesis; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 People's Republic of China
| | - Jianxin Chen
- College of Chemistry and Chemical Engineering; Fujian Normal University; Fuzhou Fujian 350007 People's Republic of China
| | - Zhifeng Mao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; Center for Excellence in Molecular Synthesis; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 People's Republic of China
| | - Xueliang Huang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology; Center for Excellence in Molecular Synthesis; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
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