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Llobat A, Escorihuela J, Ramírez de Arellano C, Fustero S, Medio-Simón M. Intramolecular rhodium-catalysed [2 + 2 + 2] cycloaddition of linear chiral N-bridged triynes: straightforward access to fused tetrahydroisoquinoline core. Org Biomol Chem 2022; 20:2433-2445. [PMID: 35274117 DOI: 10.1039/d2ob00340f] [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 route for the preparation of merged symmetrical tetrahydroisoquinolines with central chirality through a rhodium-catalyzed intramolecular [2 + 2 + 2] cycloaddition involving enantiopure triynes as substrates is described. The results show that linear triynes lacking a 3-atom tether can undergo efficient cyclisation. The N-tethered 1,7,13-triynes used in our approach were easily prepared from readily accessible chiral homopropargyl amides, the basic building blocks in our approach, which were efficiently obtained by diastereoselective addition of propargyl magnesium bromide to Ellman imines. Additional substitution at the benzene rings could be attained when substituted triynes at the terminal triple bonds were employed, giving access to more complex tetrahydroisoquinolines after the rhodium-catalyzed intramolecular [2 + 2 + 2] cycloaddition. Among the different transition-metal catalysts, the Wilkinson complex (RhCl(PPh3)3) afforded higher yields in the cyclisation of linear triynes; however, triynes bearing a Br substituent at the terminal positions underwent the cyclisation more efficiently in the presence of [RhCl(CO)2]2.
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Affiliation(s)
- Alberto Llobat
- Departamento de Química Orgánica, Universitat de València, Avda. Vicent Andrés Estellés s/n, Burjassot, 46100 Valencia, Spain
| | - Jorge Escorihuela
- Departamento de Química Orgánica, Universitat de València, Avda. Vicent Andrés Estellés s/n, Burjassot, 46100 Valencia, Spain
| | - Carmen Ramírez de Arellano
- Departamento de Química Orgánica, Universitat de València, Avda. Vicent Andrés Estellés s/n, Burjassot, 46100 Valencia, Spain
| | - Santos Fustero
- Departamento de Química Orgánica, Universitat de València, Avda. Vicent Andrés Estellés s/n, Burjassot, 46100 Valencia, Spain
| | - Mercedes Medio-Simón
- Departamento de Química Orgánica, Universitat de València, Avda. Vicent Andrés Estellés s/n, Burjassot, 46100 Valencia, Spain
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Pan C, Wang G, Zhao H, Ni J, Fan R, Zhou Y, Zhu Y, Wu S, Fan B. Cobalt-catalyzed cascade hydroalkenylation of 1,6-enynes with chalcones. Org Chem Front 2022. [DOI: 10.1039/d1qo01450a] [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
An efficient stereoselective cobalt-catalyzed hydrovinylative cyclization of 1,6-enynes with chalcones to obtain functionalized pyrrolidines has been developed.
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Affiliation(s)
- Chunxiang Pan
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
| | - Gaowei Wang
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
| | - Hengyuan Zhao
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
| | - Jianxiao Ni
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
| | - Ruifeng Fan
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
| | - Yongyun Zhou
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
| | - Yuanbin Zhu
- Yunnan Tiefeng High Tech Mining Chemicals. Co. Ltd, Qingfeng Industrial Park, Lufeng, 651200, Yunnan Province, China
| | - Shiyuan Wu
- Yunnan Tiefeng High Tech Mining Chemicals. Co. Ltd, Qingfeng Industrial Park, Lufeng, 651200, Yunnan Province, China
| | - Baomin Fan
- Key Laboratory of Advanced Synthetic Chemistry (Yunnan Minzu University), State Ethnic Affairs Commission, Kunming 650500, China
- Yunnan Tiefeng High Tech Mining Chemicals. Co. Ltd, Qingfeng Industrial Park, Lufeng, 651200, Yunnan Province, China
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Ratovelomanana-Vidal V, Matton P, Huvelle S, Haddad M, Phansavath P. Recent Progress in Metal-Catalyzed [2+2+2] Cycloaddition Reactions. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1719831] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AbstractMetal-catalyzed [2+2+2] cycloaddition is a powerful tool that allows rapid construction of functionalized 6-membered carbo- and heterocycles in a single step through an atom-economical process with high functional group tolerance. The reaction is usually regio- and chemoselective although selectivity issues can still be challenging for intermolecular reactions involving the cross-[2+2+2] cycloaddition of two or three different alkynes and various strategies have been developed to attain high selectivities. Furthermore, enantioselective [2+2+2] cycloaddition is an efficient means to create central, axial, and planar chirality and a variety of chiral organometallic complexes can be used for asymmetric transition-metal-catalyzed inter- and intramolecular reactions. This review summarizes the recent advances in the field of [2+2+2] cycloaddition.1 Introduction2 Formation of Carbocycles2.1 Intermolecular Reactions2.1.1 Cyclotrimerization of Alkynes2.1.2 [2+2+2] Cycloaddition of Two Different Alkynes2.1.3 [2+2+2] Cycloaddition of Alkynes/Alkenes with Alkenes/Enamides2.2 Partially Intramolecular [2+2+2] Cycloaddition Reactions2.2.1 Rhodium-Catalyzed [2+2+2] Cycloaddition2.2.2 Molybdenum-Catalyzed [2+2+2] Cycloaddition2.2.3 Cobalt-Catalyzed [2+2+2] Cycloaddition2.2.4 Ruthenium-Catalyzed [2+2+2] Cycloaddition2.2.5 Other Metal-Catalyzed [2+2+2] Cycloaddition2.3 Totally Intramolecular [2+2+2] Cycloaddition Reactions3 Formation of Heterocycles3.1 Cycloaddition of Alkynes with Nitriles3.2 Cycloaddition of 1,6-Diynes with Cyanamides3.3 Cycloaddition of 1,6-Diynes with Selenocyanates3.4 Cycloaddition of Imines with Allenes or Alkenes3.5 Cycloaddition of (Thio)Cyanates and Isocyanates3.6 Cycloaddition of 1,3,5-Triazines with Allenes3.7 Cycloaddition of Aldehydes with Enynes or Allenes/Alkenes3.8 Totally Intramolecular [2+2+2] Cycloaddition Reactions4 Conclusion
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4
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Pounder A, Tam W, Chen LD. The Mechanism and Origin of Enantioselectivity in the Rhodium-Catalyzed Asymmetric Ring-Opening Reactions of Oxabicyclic Alkenes with Organoboronic Acids: A DFT Investigation. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Austin Pounder
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - William Tam
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Leanne D. Chen
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada
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Cao T, Yang Z, Sun Y, Zhao N, Lu S, Zhang J, Wang L. Lewis Base‐Catalyzed Cycloaddition of Heterocyclic Alkenes with 2,2,2‐Trifluorodiazoethane (CF
3
CHN
2
): Access to Trifluoromethylated Pyrazolines and Pyrazoles. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100521] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Tingting Cao
- Department of Traditional Chinese Medicine Jilin Agricultural University Changchun 130118 P. R. China
- Institute of Medicinal Plant Development Chinese Academy of Medical Science&Peking Union Medical College Beijing 100193 P. R. China
| | - Zhen Yang
- Department of Traditional Chinese Medicine Jilin Agricultural University Changchun 130118 P. R. China
| | - Yunfang Sun
- Institute of Medicinal Plant Development Chinese Academy of Medical Science&Peking Union Medical College Beijing 100193 P. R. China
| | - Nannan Zhao
- Institute of Medicinal Plant Development Chinese Academy of Medical Science&Peking Union Medical College Beijing 100193 P. R. China
| | - Shan Lu
- Institute of Medicinal Plant Development Chinese Academy of Medical Science&Peking Union Medical College Beijing 100193 P. R. China
| | - Jing Zhang
- Department of Traditional Chinese Medicine Jilin Agricultural University Changchun 130118 P. R. China
| | - Lei Wang
- Institute of Medicinal Plant Development Chinese Academy of Medical Science&Peking Union Medical College Beijing 100193 P. R. China
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Asymmetric Diels–Alder reaction between furans and propiolates. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Vivek Kumar S, Yen A, Lautens M, Guiry PJ. Catalytic asymmetric transformations of oxa- and azabicyclic alkenes. Chem Soc Rev 2021; 50:3013-3093. [DOI: 10.1039/d0cs00702a] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
This review provides an overview of the fundamental concepts and recent developments in a wide range of enantioselective transformations involving oxa- and azabicyclic alkenes.
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Affiliation(s)
- Sundaravel Vivek Kumar
- Synthesis and Solid State Pharmaceutical Centre
- Centre for Synthesis and Chemical Biology
- School of Chemistry
- University College Dublin
- Dublin 4
| | - Andy Yen
- Department of Chemistry
- The University of Manchester
- Manchester M13 9PL
- UK
| | - Mark Lautens
- Department of Chemistry
- Davenport Chemical Laboratories
- University of Toronto
- Toronto
- Canada
| | - Patrick J. Guiry
- Synthesis and Solid State Pharmaceutical Centre
- Centre for Synthesis and Chemical Biology
- School of Chemistry
- University College Dublin
- Dublin 4
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Wang G, Khan R, Liu H, Shen G, Yang F, Chen J, Zhou Y, Fan B. Cobalt-Catalyzed Ligand-Controlled Divergent Regioselective Reactions of 1,6-Enynes with Thiols. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00179] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gaowei Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Ruhima Khan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Haojie Liu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Guoli Shen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Fan Yang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Jingchao Chen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Yongyun Zhou
- School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, China
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
| | - Baomin Fan
- School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, China
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, State Ethnic Affairs Commission & Ministry of Education, Kunming 650500, China
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Lin Q, Yao Y, Yang W, Tan Y, Chen S, Chen D, Yang D. Copper-catalyzed diastereoselective hydrothioetherification of oxa(aza)benzonorbornadienes. Org Biomol Chem 2020; 18:3575-3584. [PMID: 32347285 DOI: 10.1039/d0ob00659a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel copper-catalyzed hydrothioetherification of oxa(aza)bicyclic alkenes with potassium thioacetate and aryl or alkyl iodides to synthesize unsymmetrical thioethers has been developed. Notably, the reaction with complete diastereoselectivity went through a syn-selective addition process to give exo-adducts. In addition, this protocol exhibited high efficiency and good functional group tolerance to afford the target thioethers in moderate to good yields. Based on the results of mechanistic investigations, a plausible mechanism was proposed.
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Affiliation(s)
- Qifu Lin
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, People's Republic of China.
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Khan R, Chen J, Fan B. Versatile Catalytic Reactions of Norbornadiene Derivatives with Alkynes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901494] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ruhima Khan
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Kunming 650500 People's Republic of China
| | - Jingchao Chen
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Kunming 650500 People's Republic of China
| | - Baomin Fan
- Key Laboratory of Chemistry in Ethnic Medicinal ResourcesYunnan Minzu University Kunming 650500 People's Republic of China
- School of Chemistry and EnvironmentYunnan Minzu University Yuehua Street Kunming 650500 People's Republic of China
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Suzuki S, Shibata Y, Tanaka K. Rhodium-Catalyzed Asymmetric [2+2+2] Cycloaddition of 1,6-Enynes with Racemic Secondary Allylic Alcohols through Kinetic Resolution. Chemistry 2020; 26:3698-3702. [PMID: 31903635 DOI: 10.1002/chem.202000010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Indexed: 01/01/2023]
Abstract
It has been established that a cationic rhodium(I)/P-phos complex catalyzes the asymmetric [2+2+2] cycloaddition of 1,6-enynes with racemic secondary allylic alcohols to produce the corresponding chiral bicyclic cyclohexenes, possessing three stereogenic centers, as a single diastereomer with excellent ee values. Mechanistic experiments revealed that the present cycloaddition proceeds through the kinetic resolution of the racemic secondary allylic alcohols, in which one enantiomer preferentially reacts with the 1,6-enyne.
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Affiliation(s)
- Shunsuke Suzuki
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yu Shibata
- 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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