1
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Kang J, Oh CH. Various synthetic approaches for [6,7,m]‐tricyclic compounds containing an oxygen‐bridged skeleton. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Juyeon Kang
- Department of Chemistry and Research Institute of Natural Science Hanyang University Sungdong‐Gu, Seoul Korea
| | - Chang Ho Oh
- Department of Chemistry and Research Institute of Natural Science Hanyang University Sungdong‐Gu, Seoul Korea
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2
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Zhang MC, Wang DC, Wang HT, Qu GR, Guo HM. Highly Chemoselective Synthesis of Purino[3,2- c]oxazoles via the Asymmetric Dearomative [3+2] Cycloaddition of Purines with Donor-Acceptor Oxiranes. Org Lett 2022; 24:7527-7532. [PMID: 36207146 DOI: 10.1021/acs.orglett.2c02773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A Ni(II)/bisoxazoline-catalyzed asymmetric dearomative [3+2] cycloaddition of substituted purines with donor-acceptor oxiranes was developed. This reaction, which proceeds via highly chemoselective C-C bond cleavage of the oxiranes, accesses chiral purino[3,2-c]oxazole compounds (≤99% ee after enrichment via crystallization). The electronic effects of the purine ring determine the reactivity of the substrate. The general applicability of this method was illustrated by gram-scale synthesis, the diverse transformations of the product, and the promising biological activities of selected derivatives.
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Affiliation(s)
- Meng-Cheng Zhang
- School of Environment, Henan Normal University, Xinxiang, Henan 453007, China
| | - Dong-Chao Wang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Hai-Ting Wang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Gui-Rong Qu
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Hai-Ming Guo
- School of Environment, NMPA Key Laboratory for Research and Evaluation of Innovative Drugs, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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3
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Zhang MM, Qu BL, Shi B, Xiao WJ, Lu LQ. High-order dipolar annulations with metal-containing reactive dipoles. Chem Soc Rev 2022; 51:4146-4174. [PMID: 35521739 DOI: 10.1039/d1cs00897h] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Medium-sized heterocycles are widespread among a spectrum of structurally intriguing and biologically significant natural products and synthetic pharmaceuticals. Metal-catalyzed high-order dipolar annulations resembling reactions of metal-containing reactive dipoles with dipolarophiles constitute a highly efficient and flexible strategy for constructing medium-sized heterocycles. Mechanistically, these annulation reactions usually proceeding through stepwise pathways are different from the classic high-order pericyclic reactions that follow the Woodward-Hoffman rules. More significantly, asymmetric high-order dipolar annulations using chiral organometallic catalysts have been proven successful for constructing chiral medium-sized heterocycles with high enantio- and diastereoselectivity. This review highlights the impressive advances in this area and is focused on the reactivity, scope, mechanisms and applications of high-order dipolar annulation reactions.
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Affiliation(s)
- Mao-Mao Zhang
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China.
| | - Bao-Le Qu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China.
| | - Bin Shi
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China.
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China. .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, 345 Lingling Road, Shanghai 200032, China
| | - Liang-Qiu Lu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, China. .,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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4
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Ma P, Wang J, Liu G. Direct Synthesis of 1‐Naphthylamines Enabled by 6‐endo‐dig Cyclization Strategy Using Copper Catalysis. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Peng Ma
- Department of Chemistry, College of Science Tianjin University Tianjin P. R. China
| | - Jianhui Wang
- Department of Chemistry, College of Science Tianjin University Tianjin P. R. China
| | - Guiyan Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules (Tianjin), College of Chemistry Tianjin Normal University Tianjin P. R. China
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5
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Yu B, Huang R, Li R, Zhang H, Huang H. Silver-catalyzed chemodivergent assembly of aminomethylated isochromenes and naphthols. Chem Commun (Camb) 2022; 58:3969-3972. [PMID: 35253823 DOI: 10.1039/d2cc00303a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A silver-catalyzed chemodivergent cyclization of alkyne-tethered aldehydes with aminals to aminomethylated 1H-isochromenes and naphthols is described by tuning the reaction conditions. The reaction exhibits broad substrate generality and functional group compatibility. Mechanistic studies have disclosed that the aminomethylated naphthols are generated from the resulting N,O-aminal containing isochromenes via a silver-catalyzed unusual rearrangement process.
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Affiliation(s)
- Bangkui Yu
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China.
| | - Renbin Huang
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China.
| | - Renren Li
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China.
| | - Haocheng Zhang
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China.
| | - Hanmin Huang
- Department of Chemistry, School of Chemistry and Material Science, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, 230026, P. R. China. .,State Key Laboratory of Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
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6
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Chen J, Hu R, Bao Q, Shang D, Yu L, Chan PWH, Rao W. Ligand-controlled chemoselectivity in gold-catalyzed cascade cyclization of 1,4-diene-tethered 2-alkynylbenzaldehydes. Org Chem Front 2022. [DOI: 10.1039/d2qo01346k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A synthetic method that relies on the gold(i)-catalyzed cascade annulation of skipped 1,4-diene-tethered 2-alkynylbenzaldehydes for the chemo- and stereoselective assembly polycyclic bridged-pyrrolidines and -azepines is described.
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Affiliation(s)
- Jichao Chen
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Rui Hu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Qing Bao
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Dandan Shang
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lei Yu
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | | | - Weidong Rao
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
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7
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Hu R, Chen J, Wang Z, Shang D, Yu L, Chan PWH, Rao W. THF-Enabled PtBr 2-Catalyzed Desymmetric Hydrogenative [3 + 2] Cycloaddition of 2-Alkynylbenzaldehyde-Tethered Cyclohexadienones. Org Chem Front 2022. [DOI: 10.1039/d2qo00593j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A THF-enabled PtBr2-catalyzed desymmetric hydrogenative [3 + 2] cycloaddition of 2-alkynylbenzaldehyde-tethered cyclohexadienones has been developed. The protocol provides a highly functionalized 6-7-6 polycyclic skeleton with four contiguous stereocenters in good...
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8
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Zheng H, Wang R, Wang K, Wherritt D, Arman H, Doyle MP. Formal [4 + 4]-, [4 + 3]-, and [4 + 2]-cycloaddition reactions of donor-acceptor cyclobutenes, cyclopropenes and siloxyalkynes induced by Brønsted acid catalysis. Chem Sci 2021; 12:4819-4824. [PMID: 34168758 PMCID: PMC8179600 DOI: 10.1039/d1sc00158b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 02/16/2021] [Indexed: 02/04/2023] Open
Abstract
Brønsted acid catalyzed formal [4 + 4]-, [4 + 3]-, and [4 + 2]-cycloadditions of donor-acceptor cyclobutenes, cyclopropenes, and siloxyalkynes with benzopyrylium ions are reported. [4 + 2]-cyclization/deMayo-type ring-extension cascade processes produce highly functionalized benzocyclooctatrienes, benzocycloheptatrienes, and 2-naphthols in good to excellent yields and selectivities. Moreover, the optical purity of reactant donor-acceptor cyclobutenes is fully retained during the cascade. The 1,3-dicarbonyl product framework of the reaction products provides opportunities for salen-type ligand syntheses and the construction of fused pyrazoles and isoxazoles that reveal a novel rotamer-diastereoisomerism.
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Affiliation(s)
- Haifeng Zheng
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Rui Wang
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Kan Wang
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Daniel Wherritt
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Hadi Arman
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
| | - Michael P Doyle
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle San Antonio TX 78249 USA
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9
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Koshikawa T, Nagashima Y, Tanaka K. Gold-Catalyzed [3 + 2] Annulation, Carbenoid Transfer, and C–H Insertion Cascade: Elucidation of Annulation Mechanisms via Benzopyrylium Intermediates. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05394] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Takumi Koshikawa
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Yuki Nagashima
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152-8550, Japan
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10
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Bakthadoss M, Agarwal V. Rhodium-Catalyzed Diastereoselective [3 + 2] Cycloaddition of Carbonyl Ylide: An Access to the Core Ring System of Cordigol and Lophirone H. J Org Chem 2020; 85:15221-15231. [PMID: 33211499 DOI: 10.1021/acs.joc.0c02073] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
This paper describes a new synthetic strategy for the construction of tricyclic chromeno/quinolino furan frameworks via creation of two new rings and three contiguous stereogenic centers with high diastereoselectivity through a rhodium-catalyzed intramolecular carbonyl ylide cycloaddition reaction for the first time. This protocol allows the synthesis of the core ring system of natural products such as cordigol and lophirone H.
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Affiliation(s)
| | - Vishal Agarwal
- Department of Chemistry, Pondicherry University, Puducherry 605014, India
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11
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Gollapelli KK, Patil VB, Vinaykumar A, Chegondi R. Rh(i)-catalyzed stereoselective desymmetrization of prochiral cyclohexadienones via highly exo-selective Huisgen-type [3 + 2] cycloaddition. Chem Sci 2020; 12:1544-1550. [PMID: 34163917 PMCID: PMC8179110 DOI: 10.1039/d0sc05543c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
A Rh(i)-catalyzed highly stereoselective desymmetrization of 2-alkynylbenzaldehyde-tethered cyclohexadienones triggered by intramolecular Huisgen-type [3 + 2] cycloaddition has been developed. This method enables convergent construction of complex epoxy-bridged polycyclic ring systems with five contiguous stereocenters with excellent exo-selectivity and broad substrate scope. The highly atom-economical process involves 6-endo-dig cyclization of carbonyl oxygen onto an activated alkyne resulting in a highly reactive metal–benzopyrylium intermediate, which readily undergoes intramolecular [3 + 2] annulation/hydration. Asymmetric induction is also achieved for the first time in Rh(i)-catalyzed 1,3-dipolar cycloaddition using an easily accessible chiral diene as the ligand. A Rh(i)-catalyzed highly stereoselective desymmetrization of 2-alkynylbenzaldehyde-tethered cyclohexadienones triggered by intramolecular Huisgen-type [3 + 2] cycloaddition has been developed.![]()
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Affiliation(s)
- Krishna Kumar Gollapelli
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Hyderabad 500007 India.,Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India https://cramhcu.wixsite.com/rambabu-chegondi
| | - Vaibhav B Patil
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Hyderabad 500007 India.,Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India https://cramhcu.wixsite.com/rambabu-chegondi
| | - Allam Vinaykumar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Hyderabad 500007 India.,Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India https://cramhcu.wixsite.com/rambabu-chegondi
| | - Rambabu Chegondi
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Hyderabad 500007 India.,Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India https://cramhcu.wixsite.com/rambabu-chegondi
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12
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Zhang C, Wang G, Zhan L, Yang X, Wang J, Wei Y, Xu S, Shi M, Zhang J. Gold(I) or Gold(III) as Real Intermediate Species in Gold-Catalyzed Cycloaddition Reactions of Enynal/Enynone? ACS Catal 2020. [DOI: 10.1021/acscatal.0c00220] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Caiyun Zhang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Gendi Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Licheng Zhan
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xueyan Yang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jiwei Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Sheng Xu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Min Shi
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Jun Zhang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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13
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Sekar Kulandai Raj A, Liu R. Gold‐catalyzed [4+3]‐Annulations of Benzopyriliums with Vinyldiazo Carbonyls to Form Bicyclic Heptatriene Rings with Skeletal Rearrangement. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000292] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Antony Sekar Kulandai Raj
- Frontier Research Center for Fundamental and Basic Science of MattersDepartment of ChemistryNational Tsing-Hua University Hsinchu Taiwan, ROC
| | - Rai‐Shung Liu
- Frontier Research Center for Fundamental and Basic Science of MattersDepartment of ChemistryNational Tsing-Hua University Hsinchu Taiwan, ROC
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14
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Ruan W, Yang T, Shi C, Bai W, Sung HHY, Williams ID, Lin Z, Jia G. Substituent Effect on the Reactions of OsCl2(PPh3)3 with o-Ethynylphenyl Carbonyl Compounds. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00810] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Wenqing Ruan
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Tilong Yang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Chuan Shi
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Wei Bai
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Herman H. Y. Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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15
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Lu S, Chang Z, Xiao Y, Li H. Regio‐ and Stereoselective Synthesis of 2‐Hydroxymethyl‐1,3‐enynes by Rhodium‐Catalyzed Decarboxylative C−C Coupling. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shi‐Chao Lu
- State Key Laboratory of Natural and Biomimetic DrugsPeking University Beijing 100191 People's Republic of China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical SciencesPeking Union Medical College 2 A Nanwei Road, Xicheng District Beijing 100050 People's Republic of China
| | - Zhi‐Xin Chang
- Institute of Pharmacology, School of Pharmaceutical SciencesShandong First Medical University & Shandong Academy of Medical Sciences 619 Changcheng Road Taian 271016 People's Republic of China
| | - Yu‐Liang Xiao
- Institute of Pharmacology, School of Pharmaceutical SciencesShandong First Medical University & Shandong Academy of Medical Sciences 619 Changcheng Road Taian 271016 People's Republic of China
| | - Hong‐Shuang Li
- Institute of Pharmacology, School of Pharmaceutical SciencesShandong First Medical University & Shandong Academy of Medical Sciences 619 Changcheng Road Taian 271016 People's Republic of China
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16
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Raj ASK, Liu RS. Gold-Catalyzed Bicyclic Annulations of 2-Alkynylbenzaldehydes with Vinyldiazo Carbonyls that Serve as Five-atom Building Units. Angew Chem Int Ed Engl 2019; 58:10980-10984. [PMID: 31132199 DOI: 10.1002/anie.201905350] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 05/23/2019] [Indexed: 12/23/2022]
Abstract
This work reports gold-catalyzed bicyclic annulations of 2-alkynyl-1-carbonylbenzenes with vinyldiazo ketones that serve as five-atom building units. The importance of these reactions is to access 4,5-dihydro-benzo[g]indazoles, which form the structural cores of various bioactive molecules. According to our mechanistic analysis, we postulate initial [5+4]-cycloadditions between benzopyrilium intermediates and vinyldiazo ketones, followed by 6-π-electrocyclizations to achieve the excellent stereoselectivity.
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Affiliation(s)
- Antony Sekar Kulandai Raj
- Frontier Research Center for Fundamental and Applied Science of Matters, Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC
| | - Rai-Shung Liu
- Frontier Research Center for Fundamental and Applied Science of Matters, Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC
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17
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Raj ASK, Liu R. Gold‐Catalyzed Bicyclic Annulations of 2‐Alkynylbenzaldehydes with Vinyldiazo Carbonyls that Serve as Five‐atom Building Units. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905350] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Antony Sekar Kulandai Raj
- Frontier Research Center for Fundamental and Applied Science of MattersDepartment of ChemistryNational Tsing-Hua University Hsinchu Taiwan, ROC
| | - Rai‐Shung Liu
- Frontier Research Center for Fundamental and Applied Science of MattersDepartment of ChemistryNational Tsing-Hua University Hsinchu Taiwan, ROC
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18
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Zhang Q, Wang J, Wei Y, Zhai H, Li Y. Stereoselective Synthesis of Spiro-2-oxabicyclo[2.2.2]octane Enabled by Ag(I)/ Brønsted Acid Relay Catalysis. Org Lett 2019; 21:1694-1698. [DOI: 10.1021/acs.orglett.9b00251] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Qingyu Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Jianping Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Yansheng Wei
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Hongbin Zhai
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Yun Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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19
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Su L, Ren T, Dong J, Liu L, Xie S, Yuan L, Zhou Y, Yin SF. Cu(I)-Catalyzed 6-endo-dig Cyclization of Terminal Alkynes, 2-Bromoaryl Ketones, and Amides toward 1-Naphthylamines: Applications and Photophysical Properties. J Am Chem Soc 2019; 141:2535-2544. [DOI: 10.1021/jacs.8b12495] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Lebin Su
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Tianbing Ren
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jianyu Dong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
- Department of Educational Science, Hunan First Normal University, Changsha 410205, China
| | - Lixin Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Shimin Xie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Lin Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Yongbo Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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20
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Chia PY, Kuo CC, Huang SL, Liu YH, Liu LK, Lin YC. Intermolecular Dehydrative Coupling and Intramolecular Cyclization of Ruthenium Vinylidene Complexes Formed from Aromatic Propynes Containing Carbonyl Functionalities. Chem Asian J 2018; 13:3885-3894. [PMID: 30291795 DOI: 10.1002/asia.201801303] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 10/01/2018] [Indexed: 01/06/2023]
Abstract
A remarkable intermolecular dehydrative coupling reaction with the formation of a C-C bond was found for the vinylidene complex 2 a, yielding the dinuclear bisvinylidene complex 4 a. Complex 2 a containing 1-hydroxyindan moiety was first formed from the reaction of o-propynyl benzaldehyde 1 a with [Ru]-Cl ([Ru]=Cp(PPh3 )2 Ru) by a cyclization process. For analogous aldehyde 1 b containing an additional 1,3-dioxolane group on the aryl ring, similar intermolecular coupling yields the dinuclear bisvinylidene complex 4 b. However, the fluoro group on the aryl ring in aldehyde 1 c inhibits the coupling reaction, giving only the vinylidene complex 2 c. For the reactions of [Ru]-Cl in MeOH with compounds 1 f, 1 g and 1 h, each with a ketone functionality, cyclization gives vinylidene complexes 2 f, 2 g and 2 h, respectively. However, no similar intermolecular coupling was observed, instead, the intramolecular dehydration yields 8 f, 8 g and 8 h, respectively. In CDCl3 , catalytic cyclization is observed for the o-propynylphenyl ketone 1 h with [Ru]-Cl at 50 °C giving the isochromene products 14 h. Furthermore, treatment of the o-propynylaryl α,β-unsaturated ketones 1 k-m and 1 n with [Ru]-Cl in MeOH affords the corresponding vinylidene complexes 10 k-m and 11 n each with 1-benzosuberone moiety in the presence of NH4 PF6 . These intramolecular cyclization products were formed by the addition of Cβ onto the terminal carbon of the alkene moiety. All these reaction products were characterized by spectroscopic methods. In addition, structures of complexes 4 a, and 10 l were confirmed by single crystal X-ray diffraction analysis.
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Affiliation(s)
- Pi-Yeh Chia
- Department of Chemistry, National (Taiwan) University, Taipei, 106, Taiwan
| | - Cheng-Chen Kuo
- Department of Chemistry, National (Taiwan) University, Taipei, 106, Taiwan
| | - Shou-Ling Huang
- Department of Chemistry, National (Taiwan) University, Taipei, 106, Taiwan
| | - Yi-Hong Liu
- Department of Chemistry, National (Taiwan) University, Taipei, 106, Taiwan
| | - Ling-Kang Liu
- Department of Chemistry, National (Taiwan) University, Taipei, 106, Taiwan
| | - Ying-Chih Lin
- Department of Chemistry, National (Taiwan) University, Taipei, 106, Taiwan
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21
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Kita Y, Yata T, Nishimoto Y, Chiba K, Yasuda M. Selective oxymetalation of terminal alkynes via 6- endo cyclization: mechanistic investigation and application to the efficient synthesis of 4-substituted isocoumarins. Chem Sci 2018; 9:6041-6052. [PMID: 30079217 PMCID: PMC6053900 DOI: 10.1039/c8sc01537f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 06/13/2018] [Indexed: 01/05/2023] Open
Abstract
The cyclization of heteroatom-containing alkynes with π acidic metal salts is an attractive method to prepare heterocycles because the starting materials are readily available and the organometallic compounds are useful synthetic intermediates. A new organometallic species in the heterocyclization provides an opportunity to synthesize heterocycles that are difficult to obtain. Herein, we describe a novel cyclic oxymetalation of 2-alkynylbenzoate with indium or gallium salts that proceeds with an unusual regioselectivity to give isocoumarins bearing a carbon-metal bond at the 4-position. This new type of metalated isocoumarin provided 3-unsubstituted isocoumarins that have seldom been investigated despite their important pharmacological properties. Indium and gallium salts showed high performance in the selective 6-endo cyclization of terminal alkynes while boron or other metals such as Al, Au, and Ag caused 5-exo cyclization or decomposition of terminal alkynes, respectively. The metalated isocoumarin and its reaction intermediate were unambiguously identified by X-ray crystallographic analysis. The theoretical calculation of potential energy profiles showed that oxyindation could proceed via 6-endo cyclization under thermodynamic control while previously reported oxyboration would give a 5-membered ring under kinetic control. The investigation of electrostatic potential maps suggested that the differences in the atomic characters of indium, boron and their ligands would contribute to such a regioselective switch. The metalated isocoumarins were applied to organic synthetic reactions. The halogenation of metalated isocoumarins proceeded to afford 4-halogenated isocoumarins bearing various functional groups. The palladium-catalyzed cross coupling of organometallic species with organic halides gave various 4-substituted isocoumarins. A formal total synthesis of oosponol, which exhibits strong antifungal activity, was accomplished.
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Affiliation(s)
- Yuji Kita
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka, Suita , Osaka 565-0871 , Japan .
| | - Tetsuji Yata
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka, Suita , Osaka 565-0871 , Japan .
| | - Yoshihiro Nishimoto
- Frontier Research Base for Global Young Researchers Center for Open Innovation Research and Education (COiRE) , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka, Suita , Osaka 565-0871 , Japan .
| | - Kouji Chiba
- Material Science Division , MOLSIS Inc. , 1-28-38 Shinkawa, Chuo-ku , Tokyo 104-0033 , Japan
| | - Makoto Yasuda
- Department of Applied Chemistry , Graduate School of Engineering , Osaka University , 2-1 Yamadaoka, Suita , Osaka 565-0871 , Japan .
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22
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Liang R, Zhang J, Chen L, Zhu S. Efficient Assembly of Tetracyclic Framework of Fluorenols through Silver-Catalyzed Tandem Reaction of Acceptor-Enynals and Alkynes via Unfavorable 6-endo
-dig
Cyclization. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700613] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Renxiao Liang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; 381 Wushan Road Guangzhou 510640 China
- College of Chemical Engineering; Zhejiang University of Technology; 18 Chaowang Road Hangzhou 310014 China
| | - Jiantao Zhang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; 381 Wushan Road Guangzhou 510640 China
| | - Lianfen Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; 381 Wushan Road Guangzhou 510640 China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; 381 Wushan Road Guangzhou 510640 China
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23
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Abstract
Three kinds of transformations based on benzo-fused donor- and acceptor-enynals/enynones, including reactions with alkenes, alkynes, and H2O, were discussed.
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Affiliation(s)
- Lianfen Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Zhili Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
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24
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Ren A, Lang B, Lin J, Lu P, Wang Y. 4-Diazoisochroman-3-imines: A Class of Metal Carbene Precursors for the Synthesis of Isochromene Derivatives. J Org Chem 2017; 82:10953-10959. [DOI: 10.1021/acs.joc.7b01860] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anni Ren
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Bo Lang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Jialun Lin
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Ping Lu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Yanguang Wang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
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25
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Li Y, Zhang Q, Wang H, Cheng B, Zhai H. Bioinspired Total Synthesis of (±)-Chaetophenol C Enabled by a Pd-Catalyzed Cascade Cyclization. Org Lett 2017; 19:4387-4390. [DOI: 10.1021/acs.orglett.7b02124] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yun Li
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
- State
Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Qingyu Zhang
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Hongyu Wang
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Bin Cheng
- State
Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Hongbin Zhai
- Laboratory
of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
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26
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Miao T, Tian ZY, He YM, Chen F, Chen Y, Yu ZX, Fan QH. Asymmetric Hydrogenation of In Situ Generated Isochromenylium Intermediates by Copper/Ruthenium Tandem Catalysis. Angew Chem Int Ed Engl 2017; 56:4135-4139. [DOI: 10.1002/anie.201611291] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 01/11/2017] [Indexed: 12/25/2022]
Affiliation(s)
- Tingting Miao
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry, Chinese Academy of Sciences (CAS); University of Chinese Academy of Sciences; Beijing 100190 P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 P.R. China
| | - Zi-You Tian
- BNLMS; Key Laboratory of Bioorganic Chemistry and Molecular Engineering; College of Chemistry; Peking University; Beijing 100871 P.R. China
| | - Yan-Mei He
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry, Chinese Academy of Sciences (CAS); University of Chinese Academy of Sciences; Beijing 100190 P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 P.R. China
| | - Fei Chen
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry, Chinese Academy of Sciences (CAS); University of Chinese Academy of Sciences; Beijing 100190 P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 P.R. China
| | - Ya Chen
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry, Chinese Academy of Sciences (CAS); University of Chinese Academy of Sciences; Beijing 100190 P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 P.R. China
| | - Zhi-Xiang Yu
- BNLMS; Key Laboratory of Bioorganic Chemistry and Molecular Engineering; College of Chemistry; Peking University; Beijing 100871 P.R. China
| | - Qing-Hua Fan
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry, Chinese Academy of Sciences (CAS); University of Chinese Academy of Sciences; Beijing 100190 P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 P.R. China
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27
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Miao T, Tian ZY, He YM, Chen F, Chen Y, Yu ZX, Fan QH. Asymmetric Hydrogenation of In Situ Generated Isochromenylium Intermediates by Copper/Ruthenium Tandem Catalysis. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611291] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tingting Miao
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry, Chinese Academy of Sciences (CAS); University of Chinese Academy of Sciences; Beijing 100190 P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 P.R. China
| | - Zi-You Tian
- BNLMS; Key Laboratory of Bioorganic Chemistry and Molecular Engineering; College of Chemistry; Peking University; Beijing 100871 P.R. China
| | - Yan-Mei He
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry, Chinese Academy of Sciences (CAS); University of Chinese Academy of Sciences; Beijing 100190 P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 P.R. China
| | - Fei Chen
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry, Chinese Academy of Sciences (CAS); University of Chinese Academy of Sciences; Beijing 100190 P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 P.R. China
| | - Ya Chen
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry, Chinese Academy of Sciences (CAS); University of Chinese Academy of Sciences; Beijing 100190 P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 P.R. China
| | - Zhi-Xiang Yu
- BNLMS; Key Laboratory of Bioorganic Chemistry and Molecular Engineering; College of Chemistry; Peking University; Beijing 100871 P.R. China
| | - Qing-Hua Fan
- Beijing National Laboratory for Molecular Sciences (BNLMS); CAS Key Laboratory of Molecular Recognition and Function; Institute of Chemistry, Chinese Academy of Sciences (CAS); University of Chinese Academy of Sciences; Beijing 100190 P.R. China
- Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 P.R. China
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28
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Barluenga J, Aguilar E. Group 6 Metal Fischer Carbene Complexes. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2017. [DOI: 10.1016/bs.adomc.2017.04.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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29
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Zhang S, Bai XT, Chen DY, Chen P, Zhang QQ, Wang YB. Water-assisted metal-free catalyzed cyclization of 2-alkynylarylketones: a facile approach to indenones. RSC Adv 2017. [DOI: 10.1039/c7ra05487d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A facile approach starting from 2-alkynylarylketones was developed for the construction of functionalized indenones under metal-free and water-assisted conditions.
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Affiliation(s)
- Shuai Zhang
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- Institute of Fine Chemistry and Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Xue-Ting Bai
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- Institute of Fine Chemistry and Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Dan-Yun Chen
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- Institute of Fine Chemistry and Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Pei Chen
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- Institute of Fine Chemistry and Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Qian-Qian Zhang
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- Institute of Fine Chemistry and Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
| | - Yan-Bo Wang
- Henan Engineering Laboratory of Flame-Retardant and Functional Materials
- Institute of Fine Chemistry and Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng
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30
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Cao Z, Zhu H, Meng X, Guan J, Zhang Q, Tian L, Sun X, Chen G, You J. Metal-Free Reaction ofortho-Carbonylated Alkynyl-Substituted Arylaldehydes with Common Amines: Selective Access to Functionalized Isoindolinone and Indenamine Derivatives. Chemistry 2016; 22:16979-16985. [DOI: 10.1002/chem.201603045] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Ziping Cao
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Hongbo Zhu
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Xin Meng
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Jun Guan
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Qiang Zhang
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Laijin Tian
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Xuejun Sun
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Guang Chen
- School of Chemistry and Chemical Engineering; Qufu Normal University; Shandong Key Laboratory of Life-Organic Analysis; Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Qufu; 273165 Shandong P. R. China
| | - Jinmao You
- School of Chemistry and Chemical Engineering; Qufu Normal University; 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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31
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Oh CH, Piao L, Jung J, Kim J. A Formal Synthesis of Komaroviquinone: Use of a Pt-Catalyzed Hydrative Cyclization Reaction. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600340] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chang Ho Oh
- Department of Chemistry and Research Institute of Natural Science; Hanyang University, Seongdong-gu; Seoul 04763 Korea
| | - Lanhua Piao
- Department of Chemistry and Research Institute of Natural Science; Hanyang University, Seongdong-gu; Seoul 04763 Korea
- Hanwha Chemical Co.; 76 Gajeongno Daejeon 34128 Korea
| | - Jaemun Jung
- Department of Chemistry and Research Institute of Natural Science; Hanyang University, Seongdong-gu; Seoul 04763 Korea
| | - Jaewoong Kim
- Department of Chemistry and Research Institute of Natural Science; Hanyang University, Seongdong-gu; Seoul 04763 Korea
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32
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Zhang S, Lv P, Jia C, Zhu R, Lu T, Wheeler SE. Mechanism and Origin of Selectivity in Platinum(II)-Catalyzed Reactions of Acyclic γ,δ-Ynones with Alkenes. ChemCatChem 2016. [DOI: 10.1002/cctc.201600167] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sujuan Zhang
- Institute of Theoretical Chemistry; School of Chemistry and Chemical Engineering; Shandong University; Jinan P. R. China
| | - Pingli Lv
- Institute of Theoretical Chemistry; School of Chemistry and Chemical Engineering; Shandong University; Jinan P. R. China
| | - Chuanyi Jia
- Institute of Theoretical Chemistry; School of Chemistry and Chemical Engineering; Shandong University; Jinan P. R. China
- Guizhou Provincial Key Laboratory of Computational Nano-material Science; Institute of Applied Physics; Guizhou Education University; Guiyang 550018 P. R. China
| | - Rongxiu Zhu
- Institute of Theoretical Chemistry; School of Chemistry and Chemical Engineering; Shandong University; Jinan P. R. China
| | - Tongxiang Lu
- Department of Chemistry; Texas A&M University; College Station TX 77842 USA
| | - Steven E. Wheeler
- Department of Chemistry; Texas A&M University; College Station TX 77842 USA
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33
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Shih JL, Chen PA, May JA. The synthesis of functionalized bridged polycycles via C-H bond insertion. Beilstein J Org Chem 2016; 12:985-99. [PMID: 27340489 PMCID: PMC4902037 DOI: 10.3762/bjoc.12.97] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 04/28/2016] [Indexed: 11/23/2022] Open
Abstract
This review presents examples from the chemical literature of syntheses of bridged-polycyclic products via C–H bond insertion by carbenes and nitrenes. Applications to natural product synthesis, a description of the essential elements in substrate-controlled reactions, and mechanistic details of transformations are presented. Overall, these transformations allow the construction of important ring systems rapidly and efficiently, though additional catalyst development is needed.
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Affiliation(s)
- Jiun-Le Shih
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Fleming Bldg. Room 112, Houston, TX 77204-5003, United States
| | - Po-An Chen
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Fleming Bldg. Room 112, Houston, TX 77204-5003, United States
| | - Jeremy A May
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Fleming Bldg. Room 112, Houston, TX 77204-5003, United States
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34
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Saxena A, Perez F, Krische MJ. Ruthenium(0)-Catalyzed [4+2] Cycloaddition of Acetylenic Aldehydes with α-Ketols: Convergent Construction of Angucycline Ring Systems. Angew Chem Int Ed Engl 2016; 55:1493-7. [PMID: 26663806 PMCID: PMC4718903 DOI: 10.1002/anie.201509646] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 11/13/2015] [Indexed: 11/09/2022]
Abstract
Ruthenium(0) complexes modified by CyJohnPhos or RuPhos catalyze the successive C-C coupling of acetylenic aldehydes with α-ketols to form [4+2] cycloadducts as single diastereomers. This method enables convergent construction of type II polyketide ring systems of the angucycline class.
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Affiliation(s)
- Aakarsh Saxena
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. A5300, Austin, TX, 78712-1167, USA
| | - Felix Perez
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. A5300, Austin, TX, 78712-1167, USA
| | - Michael J Krische
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. A5300, Austin, TX, 78712-1167, USA.
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35
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Santamaría J, Aguilar E. Beyond Fischer and Schrock carbenes: non-heteroatom-stabilized group 6 metal carbene complexes – a general overview. Org Chem Front 2016. [DOI: 10.1039/c6qo00206d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Non-heteroatom-stabilized group 6 metal carbene complexes: versatile reagents or intermediates in stoichiometric or catalytic reactions in organic synthesis.
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Affiliation(s)
- Javier Santamaría
- Instituto Universitario de Química Organometálica “Enrique Moles”
- Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- Oviedo
- Spain
| | - Enrique Aguilar
- Instituto Universitario de Química Organometálica “Enrique Moles”
- Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- Oviedo
- Spain
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36
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Saxena A, Perez F, Krische MJ. Ruthenium(0)-Catalyzed [4+2] Cycloaddition of Acetylenic Aldehydes with α-Ketols: Convergent Construction of Angucycline Ring Systems. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509646] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Aakarsh Saxena
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. A5300 Austin TX 78712-1167 USA
| | - Felix Perez
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. A5300 Austin TX 78712-1167 USA
| | - Michael J. Krische
- University of Texas at Austin; Department of Chemistry; 105 E 24th St. A5300 Austin TX 78712-1167 USA
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37
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Guo B, Zhou Y, Zhang L, Hua R. Brønsted Acid-Promoted One-Pot Synthesis of Chrysene Derivatives via Isochromenylium Intermediate Formed in Situ. J Org Chem 2015; 80:7635-41. [DOI: 10.1021/acs.joc.5b01219] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Biao Guo
- Department of Chemistry, Tsinghua University, Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Beijing 100084, China
| | - Yiming Zhou
- Department of Chemistry, Tsinghua University, Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Beijing 100084, China
| | - Lei Zhang
- Department of Chemistry, Tsinghua University, Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Beijing 100084, China
| | - Ruimao Hua
- Department of Chemistry, Tsinghua University, Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Beijing 100084, China
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38
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Tandem C-H oxidation/cyclization/rearrangement and its application to asymmetric syntheses of (-)-brussonol and (-)-przewalskine E. Nat Commun 2015; 6:7332. [PMID: 26081438 PMCID: PMC4557391 DOI: 10.1038/ncomms8332] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 04/27/2015] [Indexed: 12/26/2022] Open
Abstract
Natural products are a vital source of lead compounds in drug discovery. Development of efficient tandem reactions to build useful compounds and apply them to the synthesis of natural products is not only a significant challenge but also an important goal for chemists. Here we describe a tandem C–H oxidation/cyclization/rearrangement of isochroman-derived allylic silylethers, promoted by DDQ and InCl3. This method allows the efficient construction of tricyclic benzoxa[3.2.1]octanes with a wide substrate scope. We employ this tandem reaction to achieve the asymmetric total syntheses of (−)-brussonol and (−)-przewalskine E. The ability to form complex molecular architectures from simpler precursors is important for drug discovery and medicinal chemistry. Here, the authors report a cascade reaction giving access to tricyclic products and apply it in the total synthesis of two natural products.
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39
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Qian H, Zhao W, Wang Z, Sun J. Organocatalytic Enantio- and Diastereoselective Synthesis of 1,2-Dihydronaphthalenes from Isobenzopyrylium Ions. J Am Chem Soc 2015; 137:560-3. [DOI: 10.1021/ja509824j] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hui Qian
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon,
Hong Kong SAR, China
| | - Wanxiang Zhao
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon,
Hong Kong SAR, China
| | - Zhaobin Wang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon,
Hong Kong SAR, China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon,
Hong Kong SAR, China
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40
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Zhu S, Huang H, Zhang Z, Ma T, Jiang H. Mechanistic Insight into Transition Metal-Catalyzed Reaction of Enynal/Enynone with Alkenes: Metal-Dependent Reaction Pathway. J Org Chem 2014; 79:6113-22. [DOI: 10.1021/jo500838x] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Shifa Zhu
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou, 510640 Guangdong, People’s Republic of China
| | - Hua Huang
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou, 510640 Guangdong, People’s Republic of China
| | - Zhicai Zhang
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou, 510640 Guangdong, People’s Republic of China
| | - Tongmei Ma
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou, 510640 Guangdong, People’s Republic of China
| | - Huanfeng Jiang
- School
of Chemistry and Chemical
Engineering, South China University of Technology, Guangzhou, 510640 Guangdong, People’s Republic of China
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41
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González MJ, López E, Vicente R. Rhodium-catalyzed carbene transfer to alkynes via 2-furylcarbenes generated from enynones. Chem Commun (Camb) 2014; 50:5379-81. [DOI: 10.1039/c3cc47481j] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Terada M, Li F, Toda Y. Chiral Silver Phosphate Catalyzed Transformation ofortho-Alkynylaryl Ketones into 1H-Isochromene Derivatives through an Intramolecular-Cyclization/Enantioselective-Reduction Sequence. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201307371] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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43
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Terada M, Li F, Toda Y. Chiral Silver Phosphate Catalyzed Transformation ofortho-Alkynylaryl Ketones into 1H-Isochromene Derivatives through an Intramolecular-Cyclization/Enantioselective-Reduction Sequence. Angew Chem Int Ed Engl 2013; 53:235-9. [DOI: 10.1002/anie.201307371] [Citation(s) in RCA: 126] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 10/07/2013] [Indexed: 11/06/2022]
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44
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Saito K, Kajiwara Y, Akiyama T. Chiral Copper(II) Phosphate Catalyzed Enantioselective Synthesis of Isochromene Derivatives by Sequential Intramolecular Cyclization and Asymmetric Transfer Hydrogenation ofo-Alkynylacetophenones. Angew Chem Int Ed Engl 2013; 52:13284-8. [DOI: 10.1002/anie.201308303] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Indexed: 11/11/2022]
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45
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Chiral Copper(II) Phosphate Catalyzed Enantioselective Synthesis of Isochromene Derivatives by Sequential Intramolecular Cyclization and Asymmetric Transfer Hydrogenation ofo-Alkynylacetophenones. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201308303] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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46
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Song XR, Xia XF, Song B, Tian X, Zhu HT, Zhou AX, Liu XY, Liang YM. Gold-Catalyzed Tandem Cyclization/Cycloaddition Reaction of Enynones: Highly Regioselective Synthesis of Oxabicyclic Compounds and Naphthyl Ketones. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201300118] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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47
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Yu SY, Zhang H, Gao Y, Mo L, Wang S, Yao ZJ. Asymmetric Cascade Annulation Based on Enantioselective Oxa-Diels–Alder Cycloaddition of in Situ Generated Isochromenyliums by Cooperative Binary Catalysis of Pd(OAc)2 and (S)-Trip. J Am Chem Soc 2013; 135:11402-7. [DOI: 10.1021/ja405764p] [Citation(s) in RCA: 140] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Shu-Yan Yu
- State Key
Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School
of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou
Road, Nanjing, Jiangsu 210093, China
| | - Hao Zhang
- State Key
Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School
of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou
Road, Nanjing, Jiangsu 210093, China
| | - Yang Gao
- State Key
Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School
of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou
Road, Nanjing, Jiangsu 210093, China
| | - Lei Mo
- State Key
Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School
of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou
Road, Nanjing, Jiangsu 210093, China
| | - Shaozhong Wang
- State Key
Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School
of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou
Road, Nanjing, Jiangsu 210093, China
| | - Zhu-Jun Yao
- State Key
Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School
of Chemistry and Chemical Engineering, Nanjing University, 22 Hankou
Road, Nanjing, Jiangsu 210093, China
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48
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Ma H, Chang W, Tsai F, Lin Y, Huang S, Liu Y, Wang Y. Intramolecular Cyclization of Arylalkynes with C‐O Bond Formation on Ruthenium Complexes. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201300037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hao‐Wei Ma
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Wei‐Chen Chang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Fu‐Yuan Tsai
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Ying‐Chih Lin
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Shou‐Ling Huang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Yi‐Hong Liu
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Yu Wang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
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49
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Sakthivel K, Srinivasan K. Iodine/Water-Mediated Oxidation ofo-Alkynylaroyl Compounds and Application of the Products of Oxidation in the Synthesis of Nitrogen Heterocycles. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300046] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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50
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