1
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Lv TM, Han JL, Yan QL, Lin B, Yao GD, Huang XX, Song SJ. Discovery of the Caged-Vibsane Norditerpenoids with Unprecedented Chemical Architectures and Exploration of Their Various Acid Tolerances. J Org Chem 2023; 88:12385-12393. [PMID: 37585921 DOI: 10.1021/acs.joc.3c01115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Cyclovibsanones A-D (1-4, respectively), featuring unprecedented caged tricyclo[5.4.1.05,9]dodecane and bicyclo[4.2.1]hexane cores, were isolated from the leaves of Viburnum odoratissimum. Their structures as well as that of one chemical derivative (5), which was transformed from 2, were determined by spectroscopic data, theoretical calculations, and the ML-JDP4/MAEΔΔδ methods. In addition, compounds 1 and 2 were found to possess dissimilarities in acid tolerance during nuclear magnetic resonance (NMR) experiments. The potential mechanism was consequently postulated and further supported through NMR analysis and mechanistic calculations. Biologically, chemical derivative 5 exerted antiproliferative activity against HepG2 cells.
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Affiliation(s)
- Tian-Ming Lv
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Jin-Ling Han
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Qiu-Lin Yan
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Bin Lin
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang 110016, P. R. China
| | - Guo-Dong Yao
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Xiao-Xiao Huang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
| | - Shao-Jiang Song
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, and School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, China
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2
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Laconsay CJ, Tantillo DJ. Modulating Escape Channels of Cycloheptatrienyl Rhodium Carbenes To Form Semibullvalene. J Org Chem 2023. [PMID: 37335974 DOI: 10.1021/acs.joc.3c00735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
We describe the various escape channels available to dirhodium carbene intermediates from cycloheptatrienyl diazo compounds located with density functional theory. An intramolecular cyclopropanation would, in principle, provide a new route to semibullvalenes (SBVs). A detailed exploration of the potential energy surface reveals that methylating carbon-7 suppresses a competing β-hydride migration pathway to heptafulvene products, giving SBV formation a reasonable chance. During our explorations, we additionally discovered unusual spirononatriene, spironorcaradiene, and metal-stabilized 9-barbaralyl cation structures as local minima.
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Affiliation(s)
- Croix J Laconsay
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
| | - Dean J Tantillo
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
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3
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Progress in organocatalytic asymmetric (4+3) cycloadditions for the enantioselective construction of seven-membered rings. Sci China Chem 2023. [DOI: 10.1007/s11426-022-1471-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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4
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Bettencourt CJ, Krainz T, Chow S, Parr BT, Tracy WF, Bernhardt PV, Davies HML, Williams CM. Unearthing the Subtleties of Rhodium(II)-Catalyzed Carbenoid Cycloadditions to Furans with an N-Sulfonyl-1,2,3-triazole Probe. Org Lett 2022; 24:9290-9295. [PMID: 36512372 DOI: 10.1021/acs.orglett.2c03869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The rhodium(II)-catalyzed reaction of a model alkenyl donor/acceptor N-sulfonyltriazole with a wide selection of furans is reported. This investigation unearthed a range of structurally diverse carbocyclic and ring-opened products, in good to excellent yields. The products obtained are proposed to arise selectively via cyclopropanation or zwitterionic rearrangement pathways, which are highly dependent on both the structural and electronic features of the furan substrate.
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Affiliation(s)
- Christian J Bettencourt
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Tanja Krainz
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Sharon Chow
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Brendan T Parr
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - William F Tracy
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Paul V Bernhardt
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Huw M L Davies
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Craig M Williams
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland 4072, Australia
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5
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Theindl LC, Fratoni E, da Rosa JS, Lubschinski TL, Meier L, Sá MM, Dalmarco EM. In vitro evidence that the anti‐inflammatory effect of synthetic cinnamate‐derived dienes is directly linked to a macrophage repolarization. Fundam Clin Pharmacol 2022; 36:850-859. [DOI: 10.1111/fcp.12772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/15/2022] [Accepted: 02/25/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Lais C. Theindl
- Departamento de Análises Clínicas, Centro de Ciências da Saúde Universidade Federal de Santa Catarina Florianópolis Brazil
| | - Eduarda Fratoni
- Departamento de Análises Clínicas, Centro de Ciências da Saúde Universidade Federal de Santa Catarina Florianópolis Brazil
| | - Julia S. da Rosa
- Departamento de Análises Clínicas, Centro de Ciências da Saúde Universidade Federal de Santa Catarina Florianópolis Brazil
| | - Tainá L. Lubschinski
- Departamento de Análises Clínicas, Centro de Ciências da Saúde Universidade Federal de Santa Catarina Florianópolis Brazil
| | - Lidiane Meier
- Departamento de Ciências Exatas e Educação Universidade Federal de Santa Catarina Blumenau Brazil
| | - Marcus M. Sá
- Departamento de Química Universidade Federal de Santa Catarina Florianópolis Brazil
| | - Eduardo M. Dalmarco
- Departamento de Análises Clínicas, Centro de Ciências da Saúde Universidade Federal de Santa Catarina Florianópolis Brazil
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6
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Lichtenstein YI, Golovanov IS, Ioffe SL, Tabolin AA. Tandem [3+2]-cycloaddition/homo-Baldwin rearrangement of silyl nitronates and donor-acceptor cyclopropenes. A novel approach to polysubstituted aziridines starting from nitro compounds. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Fang Z, Ma Y, Liu S, Bai H, Li S, Ning Y, Zanoni G, Liu Z. Silver-catalyzed [4 + 3] cycloaddition of 1,3-dienes with alkenyl- N-triftosylhydrazones: a practical approach to 1,4-cycloheptadienes. Org Chem Front 2022. [DOI: 10.1039/d2qo00806h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A formal [4 + 3] cycloaddition of 1,3-dienes with alkenyl-N-triftosylhydrazones was developed using silver catalysis, producing a broad spectrum of complex 1,4-cycloheptadienes with high yields and predictable stereochemistry.
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Affiliation(s)
- Zhongxue Fang
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng City 224007, People's Republic of China
| | - Yiming Ma
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng City 224007, People's Republic of China
| | - Shaopeng Liu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Huricha Bai
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Shuang Li
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yongquan Ning
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Giuseppe Zanoni
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Zhaohong Liu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
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8
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Affiliation(s)
- Shaomin Fu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University 29 Wangjiang Rd Chengdu Sichuan 610064 China
| | - Bo Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University 29 Wangjiang Rd Chengdu Sichuan 610064 China
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9
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Petruncio G, Shellnutt Z, Elahi-Mohassel S, Alishetty S, Paige M. Skipped dienes in natural product synthesis. Nat Prod Rep 2021; 38:2187-2213. [PMID: 34913051 DOI: 10.1039/d1np00012h] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Covering: 2000-2020The 1,4-diene motif, also known as a skipped diene, is widespread across various classes of natural products including alkaloids, fatty acids, terpenoids, and polyketides as part of either the finalized structure or a biosynthetic intermediate. The prevalence of this nonconjugated diene system in nature has resulted in numerous encounters in the total synthesis literature. However, skipped dienes have not been extensively reviewed, which could be attributed to overshadowing by the more recognized 1,3-diene system. In this review, we aim to highlight the relevance of skipped dienes in natural products through the lens of total synthesis. Subjects that will be covered include nomenclature, structural properties, prevalence in natural products, synthetic strategies and the future direction of the field.
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Affiliation(s)
- Greg Petruncio
- Department of Chemistry & Biochemistry, George Mason University, 10920 George Mason Circle, Manassas, Virginia 20110, USA.
| | - Zachary Shellnutt
- Department of Chemistry & Biochemistry, George Mason University, 10920 George Mason Circle, Manassas, Virginia 20110, USA.
| | - Synah Elahi-Mohassel
- Department of Chemistry & Biochemistry, George Mason University, 10920 George Mason Circle, Manassas, Virginia 20110, USA.
| | - Suman Alishetty
- Department of Bioengineering, George Mason University, 10920 George Mason Circle, Manassas, Virginia 20110, USA
| | - Mikell Paige
- Department of Chemistry & Biochemistry, George Mason University, 10920 George Mason Circle, Manassas, Virginia 20110, USA.
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10
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Li M, Zhou ZP, Yuan ZF, Zhao QS. Vibsane-type Diterpenoids: Structures, Derivatives, Bioactivities, and Synthesis. Chem Biodivers 2021; 19:e202100861. [PMID: 34860463 DOI: 10.1002/cbdv.202100861] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 11/30/2021] [Indexed: 11/06/2022]
Abstract
Vibsane-type diterpenoids isolated from the genus Viburnum , are rare 6-11 membered ring polysubstituted macrocyclic diterpenoids. Since the first report of vibsane from V. odoratissimum in 1980, they have attracted the attention of scientists due to their complex structures, excellent biological activities, and great synthetic challenges. Recently, there are some notable research achievements on the discovery, synthesis, structural modification, and pharmacological mechanism of vibsane-type diterpenoids. Therefore, we will focus on these aspects to review important achievements of vibsane diterpenoids between 1980-2021.
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Affiliation(s)
- Meng Li
- Kunming Institute of Botany Chinese Academy of Sciences, State Key Laboratory of Phytochemistry and Plant Resources in West China, 132 Lanhei Road, Heilongtan, Kunming 650201, kunming, CHINA
| | - Zhi-Ping Zhou
- Kunming Institute of Botany Chinese Academy of Sciences, State Key Laboratory of Phytochemistry and Plant Resources in West China, 132 Lanhei Road, Heilongtan, Kunming 650201, kunming, CHINA
| | - Zai-Feng Yuan
- Kunming Institute of Botany Chinese Academy of Sciences, State Key Laboratory of Phytochemistry and Plant Resources in West China, 132 Lanhei Road, Heilongtan, Kunming 650201, kunming, CHINA
| | - Qin-Shi Zhao
- Kunming Institute of Botany, Chinese Academy of Sciences, State Key Laboratory of Phytochemistry and Plant Resources in West China, 132 Lanhei Road, Heilongtan, Kunming 650201, Not Available, 650201, Kunming, CHINA
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11
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Allievi L, Dhambri S, Sun R, Selkti M, Lannou MI, Sorin G, Ardisson J. Gold(I)-Catalyzed 7- exo-dig Cyclization: A Key Step to Access the Bicyclo[4.2.1]nonane Skeleton of Vibsatin A, a Neurotrophic Diterpenoid. Org Lett 2021; 23:5218-5222. [PMID: 34156861 DOI: 10.1021/acs.orglett.1c01757] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Vibsatin A is a new neurotrophic vibsane-type diterpenoid comprising a bridged bicyclo[4.2.1]nonane skeleton. Inspired by Sawamura's works, we generated the bicyclic backbone through a Conia-ene-derived 7-exo-dig cyclization from an enantiomerically enriched TIPS-based silyl enol ether. The reaction, catalyzed by a sensitive gold(I) complex, was efficiently performed on a large scale by glovebox free techniques. Furthermore, the shape of this system was exploited for subsequent installation of all of the stereogenic centers.
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Affiliation(s)
- Luca Allievi
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Sabrina Dhambri
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Rongyu Sun
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Mohamed Selkti
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Marie-Isabelle Lannou
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Geoffroy Sorin
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Janick Ardisson
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
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12
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Wang B, Xu B, Xun W, Guo Y, Zhang J, Qiu FG. A General Strategy for the Construction of Calyciphylline A‐Type Alkaloids: Divergent Total Syntheses of (−)‐Daphenylline and (−)‐Himalensine A. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bingyang Wang
- Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou 510530 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Bo Xu
- Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou 510530 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Wen Xun
- Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou 510530 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yiming Guo
- Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou 510530 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Jing Zhang
- Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou 510530 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Fayang G. Qiu
- Guangzhou Institutes of Biomedicine and Health Chinese Academy of Sciences Guangzhou 510530 China
- University of Chinese Academy of Sciences Beijing 100049 China
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13
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Wang B, Xu B, Xun W, Guo Y, Zhang J, Qiu FG. A General Strategy for the Construction of Calyciphylline A-Type Alkaloids: Divergent Total Syntheses of (-)-Daphenylline and (-)-Himalensine A. Angew Chem Int Ed Engl 2021; 60:9439-9443. [PMID: 33569888 DOI: 10.1002/anie.202016212] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 01/31/2021] [Indexed: 12/16/2022]
Abstract
An efficient general strategy for the synthesis of the Daphniphyllum alkaloids via the rapid construction of a common core intermediate has been established, based on which a divergent total synthesis of (-)-daphenylline and (-)-himalensine A has been accomplished in 16 and 19 steps, respectively. The present work features an enantioselective Mg(ClO4 )2 -catalyzed intramolecular amidocyclization to construct the aza-bridged core structure; a Cu-catalyzed intramolecular cyclopropanation and subsequent phosphine-catalyzed Cope-type rearrangement to furnish the himalensine A scaffold; and a one-pot Diels-Alder/aromatization method to assemble the aromatic skeleton of daphenylline.
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Affiliation(s)
- Bingyang Wang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bo Xu
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wen Xun
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yiming Guo
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jing Zhang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fayang G Qiu
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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14
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Armengol‐Relats H, Mato M, Echavarren AM. Assembly of Complex 1,4‐Cycloheptadienes by (4+3) Cycloaddition of Rhodium(II) and Gold(I) Non‐Acceptor Carbenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Helena Armengol‐Relats
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
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15
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Williams CM, Dallaston MA. The Future of Retrosynthesis and Synthetic Planning: Algorithmic, Humanistic or the Interplay? Aust J Chem 2021. [DOI: 10.1071/ch20371] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The practice of deploying and teaching retrosynthesis is on the cusp of considerable change, which in turn forces practitioners and educators to contemplate whether this impending change will advance or erode the efficiency and elegance of organic synthesis in the future. A short treatise is presented herein that covers the concept of retrosynthesis, along with exemplified methods and theories, and an attempt to comprehend the impact of artificial intelligence in an era when freely and commercially available retrosynthetic and forward synthesis planning programs are increasingly prevalent. Will the computer ever compete with human retrosynthetic design and the art of organic synthesis?
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16
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Gao Y, Song X, Yan RJ, Du W, Chen YC. Asymmetric β,γ′-regioselective [4 + 3] and [4 + 2] annulations of α-vinylenals via cascade iminium ion-dienamine catalysis. Org Biomol Chem 2021; 19:151-155. [PMID: 33112340 DOI: 10.1039/d0ob02068k] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
α-Vinylenal substrates have been designed and applied in β,γ′-regioselective asymmetric [4 + 3] and [4 + 2] annulation reactions via cascade aminocatalysis.
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Affiliation(s)
- Yang Gao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Xue Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Ru-Jie Yan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
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17
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Armengol-Relats H, Mato M, Echavarren AM. Assembly of Complex 1,4-Cycloheptadienes by (4+3) Cycloaddition of Rhodium(II) and Gold(I) Non-Acceptor Carbenes. Angew Chem Int Ed Engl 2020; 60:1916-1922. [PMID: 33078893 PMCID: PMC7894532 DOI: 10.1002/anie.202012092] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Indexed: 12/23/2022]
Abstract
The formal (4+3) cycloaddition of 1,3-dienes with Rh(II) and Au(I) non-acceptor vinyl carbenes, generated from vinylcycloheptatrienes or alkoxyenynes, respectively, leads to 1,4-cycloheptadienes featuring complex and diverse substitution patterns, including natural dyctiopterene C' and a hydroxylated derivative of carota-1,4-diene. A complete mechanistic picture is presented, in which Au(I) and Rh(II) non-acceptor vinyl carbenes were shown to undergo a vinylcyclopropanation/Cope rearrangement or a direct (4+3) cycloaddition that takes place in a non-concerted manner.
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Affiliation(s)
- Helena Armengol-Relats
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/ Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
| | - Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/ Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/ Marcel⋅lí Domingo s/n, 43007, Tarragona, Spain
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18
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Min L, Hu YJ, Fan JH, Zhang W, Li CC. Synthetic applications of type II intramolecular cycloadditions. Chem Soc Rev 2020; 49:7015-7043. [PMID: 32869796 DOI: 10.1039/d0cs00365d] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Type II intramolecular cycloadditions ([4+2], [4+3], [4+4] and [5+2]) have emerged recently as an efficient and powerful strategy for the construction of bridged ring systems. In general, type II cycloadditions provide access to a wide range of bridged bicyclo[m.n.1] ring systems with high regio- and diastereoselectivity in an easy and straightforward manner. In each section of this review, an overview of the corresponding type II cycloadditions is presented, which is followed by highlights of method development and synthetic applications in natural product synthesis. The goal of this review is to provide a survey of recent advances in the field covering literature up to 2020. The review will serve as a useful reference for organic chemists engaged in the total synthesis of natural products containing bridged bicyclo[m.n.1] ring systems and provide strong stimulus for invention and further advances in this exciting research field.
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Affiliation(s)
- Long Min
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China.
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19
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Chow S, Krainz T, Bettencourt CJ, Broit N, Ferguson B, Zhu M, Hull KG, Pierens GK, Bernhardt PV, Parsons PG, Romo D, Boyle GM, Williams CM. Synthetic Tigliane Intermediates Engage Thiols to Induce Potent Cell Line Selective Anti‐Cancer Activity. Chemistry 2020; 26:13372-13377. [DOI: 10.1002/chem.202003221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/31/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Sharon Chow
- School of Chemistry and Molecular Biosciences The University of Queensland Brisbane 4072 Queensland Australia
| | - Tanja Krainz
- School of Chemistry and Molecular Biosciences The University of Queensland Brisbane 4072 Queensland Australia
| | - Christian J. Bettencourt
- School of Chemistry and Molecular Biosciences The University of Queensland Brisbane 4072 Queensland Australia
| | - Natasa Broit
- QIMR Berghofer Medical Research Institute PO Royal Brisbane Hospital Brisbane 4029 Queensland Australia
| | - Blake Ferguson
- QIMR Berghofer Medical Research Institute PO Royal Brisbane Hospital Brisbane 4029 Queensland Australia
| | - Mingzhao Zhu
- Department of Chemistry and Biochemistry CPRIT Synthesis and Drug-Lead Discovery Laboratory) Baylor University 76798 Waco Texas USA
| | - Kenneth G. Hull
- Department of Chemistry and Biochemistry CPRIT Synthesis and Drug-Lead Discovery Laboratory) Baylor University 76798 Waco Texas USA
| | - Gregory K. Pierens
- Centre for Advanced Imaging The University of Queensland Brisbane 4072 Queensland Australia
| | - Paul V. Bernhardt
- School of Chemistry and Molecular Biosciences The University of Queensland Brisbane 4072 Queensland Australia
| | - Peter G. Parsons
- QIMR Berghofer Medical Research Institute PO Royal Brisbane Hospital Brisbane 4029 Queensland Australia
| | - Daniel Romo
- Department of Chemistry and Biochemistry CPRIT Synthesis and Drug-Lead Discovery Laboratory) Baylor University 76798 Waco Texas USA
| | - Glen M. Boyle
- QIMR Berghofer Medical Research Institute PO Royal Brisbane Hospital Brisbane 4029 Queensland Australia
| | - Craig M. Williams
- School of Chemistry and Molecular Biosciences The University of Queensland Brisbane 4072 Queensland Australia
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20
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Li Z, Rösler L, Herr K, Brodrecht M, Breitzke H, Hofmann K, Limbach HH, Gutmann T, Buntkowsky G. Dirhodium Coordination Polymers for Asymmetric Cyclopropanation of Diazooxindoles with Olefins: Synthesis and Spectroscopic Analysis. Chempluschem 2020; 85:1737-1746. [PMID: 32790226 DOI: 10.1002/cplu.202000421] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/22/2020] [Indexed: 12/30/2022]
Abstract
A facile approach is reported for the preparation of dirhodium coordination polymers [Rh2 (L1)2 ]n (Rh2 -L1) and [Rh2 (L2)2 ]n (Rh2 -L2; L1=N,N'-(pyromellitoyl)-bis-L-phenylalanine diacid anion, L2=bis-N,N'-(L-phenylalanyl) naphthalene-1,4,5,8-tetracarboxylate diimide) from chiral dicarboxylic acids by ligand exchange. Multiple techniques including FTIR, XPS, and 1 H→13 C CP MAS NMR spectroscopy reveal the formation of the coordination polymers. 19 F MAS NMR was utilized to investigate the remaining TFA groups in the obtained coordination polymers, and demonstrated near-quantitative ligand exchange. DR-UV-vis and XPS confirm the oxidation state of the Rh center and that the Rh-single bond in the dirhodium node is maintained in the synthesis of Rh2 -L1 and Rh2 -L2. Both coordination polymers exhibit excellent catalytic performance in the asymmetric cyclopropanation reaction between styrene and diazooxindole. The catalysts can be easily recycled and reused without significant reduction in their catalytic efficiency.
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Affiliation(s)
- Zhenzhong Li
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Lorenz Rösler
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Kevin Herr
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Martin Brodrecht
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Hergen Breitzke
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Kathrin Hofmann
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Hans-Heinrich Limbach
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustraße 3, 14195, Berlin, Germany
| | - Torsten Gutmann
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany.,University Kassel, Institute of Chemistry and Center for Interdisciplinary Nanostructure Science and Technology, Heinrich-Plett-Straße 40, D-34132, Kassel, Germany
| | - Gerd Buntkowsky
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
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21
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Selvaraj K, Chauhan S, Sandeep K, Swamy KCK. Advances in [4+3]‐Annulation/Cycloaddition Reactions Leading to Homo‐ and Heterocycles with Seven‐Membered Rings. Chem Asian J 2020; 15:2380-2402. [DOI: 10.1002/asia.202000545] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/06/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Karuppu Selvaraj
- School of ChemistryUniversity of Hyderabad Hyderabad-500046 Telangana India
| | - Sachin Chauhan
- School of ChemistryUniversity of Hyderabad Hyderabad-500046 Telangana India
| | - K. Sandeep
- School of ChemistryUniversity of Hyderabad Hyderabad-500046 Telangana India
| | - K. C. Kumara Swamy
- School of ChemistryUniversity of Hyderabad Hyderabad-500046 Telangana India
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22
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Abstract
A (4+3)-cycloaddition combines a four-atom synthon and three-atom synthon to form seven-membered rings. In the past decade, many improvements have been made to this class of cycloaddition, including excellent diastereo- and enantioselectivities, both intra- and intermolecularly. Through the strategic use of transition-metal catalysts, acids, bases, and organocatalysts, it is possible to perform the cycloaddition on a variety of substrates, generating novel seven-membered rings. With these advances, (4+3)-cycloaddition has also been applied to the synthesis of biologically relevant compounds and natural products. We exclude the cycloadditions of cyclic dienes such as furan, pyrrole, cyclohexadiene or cyclopentadiene as Chiu, Harmata, Mascareñas and others have recently published thorough reviews on that topic. We will however discuss the recent additions (2009–2020) to the literature for the (4+3)-cycloadditions involving other types of four-atom synthons.1 Introduction2 Rhodium2.1 Cyclopropanation/Cope Rearrangement2.2 C–H activation3 Gold, Silver4 Copper5 Palladium, Platinum, Iridium6 Dual-Activation7 Conclusion
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Affiliation(s)
- Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto
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23
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Suneja A, Loui HJ, Schneider C. Cooperative Catalysis for the Highly Diastereo- and Enantioselective [4+3]-Cycloannulation of ortho-Quinone Methides and Carbonyl Ylides. Angew Chem Int Ed Engl 2020; 59:5536-5540. [PMID: 31895488 PMCID: PMC7155103 DOI: 10.1002/anie.201913603] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/12/2019] [Indexed: 11/08/2022]
Abstract
We describe herein a highly diastereo- and enantioselective [4+3]-cycloannulation of ortho-quinone methides and carbonyl ylides to furnish functionalized oxa-bridged dibenzooxacines with excellent yields and stereoselectivity in a single synthetic step. The combination of rhodium and chiral phosphoric acid catalysis working in concert to generate both transient intermediates in situ provides direct access to complex bicyclic products with two quaternary and one tertiary stereogenic centers. The products may be further functionalized into valuable and enantiomerically highly enriched building blocks.
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Affiliation(s)
- Arun Suneja
- Institut für Organische ChemieUniversität LeipzigJohannisallee 2904103LeipzigGermany
| | - Henning Jakob Loui
- Institut für Organische ChemieUniversität LeipzigJohannisallee 2904103LeipzigGermany
| | - Christoph Schneider
- Institut für Organische ChemieUniversität LeipzigJohannisallee 2904103LeipzigGermany
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24
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Suneja A, Loui HJ, Schneider C. Kooperative Katalyse für die diastereo‐ und enantioselektive [4+3]‐Cycloanellierung von
ortho
‐Chinonmethiden und Carbonylyliden. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913603] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Arun Suneja
- Institut für Organische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Deutschland
| | - Henning Jakob Loui
- Institut für Organische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Deutschland
| | - Christoph Schneider
- Institut für Organische Chemie Universität Leipzig Johannisallee 29 04103 Leipzig Deutschland
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25
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Chen G, Chen S, Luo J, Mao X, Chan AS, Sun RW, Liu Y. Tandem Cross‐Coupling/Spirocyclization/Mannich‐Type Reactions of 3‐(2‐Isocyanoethyl)indoles with Diazo Compounds toward Polycyclic Spiroindolines. Angew Chem Int Ed Engl 2020; 59:614-621. [DOI: 10.1002/anie.201911614] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/05/2019] [Indexed: 01/11/2023]
Affiliation(s)
- Guo‐Shu Chen
- School of Chemistry and Chemical EngineeringGuangzhou University 230 Wai Huan Xi Road Guangzhou 510006 China
| | - Shu‐Jie Chen
- School of Chemistry and Chemical EngineeringGuangzhou University 230 Wai Huan Xi Road Guangzhou 510006 China
| | - Jian Luo
- School of Chemistry and Chemical EngineeringGuangzhou University 230 Wai Huan Xi Road Guangzhou 510006 China
| | - Xiang‐Yu Mao
- School of Chemistry and Chemical EngineeringGuangzhou University 230 Wai Huan Xi Road Guangzhou 510006 China
| | - Albert Sun‐Chi Chan
- Guangzhou Lee & Man Technology Company LimitedRoom 401, Block A 8 Huanshi Avenue South, Nansha Guangzhou China
| | - Raymond Wai‐Yin Sun
- Guangzhou Lee & Man Technology Company LimitedRoom 401, Block A 8 Huanshi Avenue South, Nansha Guangzhou China
| | - Yun‐Lin Liu
- School of Chemistry and Chemical EngineeringGuangzhou University 230 Wai Huan Xi Road Guangzhou 510006 China
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26
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Chen G, Chen S, Luo J, Mao X, Chan AS, Sun RW, Liu Y. Tandem Cross‐Coupling/Spirocyclization/Mannich‐Type Reactions of 3‐(2‐Isocyanoethyl)indoles with Diazo Compounds toward Polycyclic Spiroindolines. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201911614] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Guo‐Shu Chen
- School of Chemistry and Chemical EngineeringGuangzhou University 230 Wai Huan Xi Road Guangzhou 510006 China
| | - Shu‐Jie Chen
- School of Chemistry and Chemical EngineeringGuangzhou University 230 Wai Huan Xi Road Guangzhou 510006 China
| | - Jian Luo
- School of Chemistry and Chemical EngineeringGuangzhou University 230 Wai Huan Xi Road Guangzhou 510006 China
| | - Xiang‐Yu Mao
- School of Chemistry and Chemical EngineeringGuangzhou University 230 Wai Huan Xi Road Guangzhou 510006 China
| | - Albert Sun‐Chi Chan
- Guangzhou Lee & Man Technology Company LimitedRoom 401, Block A 8 Huanshi Avenue South, Nansha Guangzhou China
| | - Raymond Wai‐Yin Sun
- Guangzhou Lee & Man Technology Company LimitedRoom 401, Block A 8 Huanshi Avenue South, Nansha Guangzhou China
| | - Yun‐Lin Liu
- School of Chemistry and Chemical EngineeringGuangzhou University 230 Wai Huan Xi Road Guangzhou 510006 China
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27
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Chen XW, Zhu L, Gui YY, Jing K, Jiang YX, Bo ZY, Lan Y, Li J, Yu DG. Highly Selective and Catalytic Generation of Acyclic Quaternary Carbon Stereocenters via Functionalization of 1,3-Dienes with CO 2. J Am Chem Soc 2019; 141:18825-18835. [PMID: 31703165 DOI: 10.1021/jacs.9b09721] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The catalytic asymmetric functionalization of readily available 1,3-dienes is highly important, but current examples are mostly limited to the construction of tertiary chiral centers. The asymmetric generation of acyclic products containing all-carbon quaternary stereocenters from substituted 1,3-dienes represents a more challenging, but highly desirable, synthetic process for which there are very few examples. Herein, we report the highly selective copper-catalyzed generation of chiral all-carbon acyclic quaternary stereocenters via functionalization of 1,3-dienes with CO2. A variety of readily available 1,1-disubstituted 1,3-dienes, as well as a 1,3,5-triene, undergo reductive hydroxymethylation with high chemo-, regio-, E/Z-, and enantioselectivities. The reported method features good functional group tolerance, is readily scaled up to at least 5 mmol of starting diene, and generates chiral products that are useful building blocks for further derivatization. Systemic mechanistic investigations using density functional theory calculations were performed and provided the first theoretical investigation for an asymmetric transformation involving CO2. These computational results indicate that the 1,2-hydrocupration of 1,3-diene proceeds with high π-facial selectivity to generate an (S)-allylcopper intermediate, which further induces the chirality of the quaternary carbon center in the final product. The 1,4-addition of an internal allylcopper complex, which differs from previous reports involving terminal allylmetallic intermediates, to CO2 kinetically determines the E/Z- and regioselectivity. The rapid reduction of a copper carboxylate intermediate to the corresponding silyl-ether in the presence of Me(MeO)2SiH provides the exergonic impetus and leads to chemoselective hydroxymethylation rather than carboxylation. These results provide new insights for guiding further development of asymmetric C-C bond formations with CO2.
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Affiliation(s)
- Xiao-Wang Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Lei Zhu
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 400030 , P. R. China
| | - Yong-Yuan Gui
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China.,College of Chemistry and Materials Science , Sichuan Normal University , Chengdu 610068 , P. R. China
| | - Ke Jing
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Yuan-Xu Jiang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Zhi-Yu Bo
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 400030 , P. R. China.,College of Chemistry, and Institute of Green Catalysis , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Jing Li
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Da-Gang Yu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China.,Beijing National Laboratory for Molecular Sciences , Beijing 100190 , P. R. China
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28
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Chow S, Krainz T, Bernhardt PV, Williams CM. En Route to D-Ring Inverted Phorbol Esters. Org Lett 2019; 21:8761-8764. [DOI: 10.1021/acs.orglett.9b03379] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Sharon Chow
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Australia
| | - Tanja Krainz
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Australia
| | - Paul V. Bernhardt
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Australia
| | - Craig M. Williams
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Australia
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29
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Davies HML. Finding Opportunities from Surprises and Failures. Development of Rhodium-Stabilized Donor/Acceptor Carbenes and Their Application to Catalyst-Controlled C-H Functionalization. J Org Chem 2019; 84:12722-12745. [PMID: 31525891 PMCID: PMC7232105 DOI: 10.1021/acs.joc.9b02428] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Catalyst-controlled C-H functionalization by means of the C-H insertion chemistry of rhodium carbenes has become a powerful synthetic method. The key requirements for the development of this chemistry are donor/acceptor carbenes and the chiral dirhodium tetracarboxylate catalysts. This perspective will describe the stages involved in developing this chemistry and illustrate the scope of the donor/acceptor carbene C-H functionalization.
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Affiliation(s)
- Huw M L Davies
- Department of Chemistry , Emory University , 1515 Dickey Drive , Atlanta , Georgia 30322 , Unites States
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30
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Cai W, Wu J, Zhang H, Jalani HB, Li G, Lu H. Rh-Catalyzed Chemoselective [4 + 1] Cycloaddition Reaction toward Diverse 4-Methyleneprolines. J Org Chem 2019; 84:10877-10891. [DOI: 10.1021/acs.joc.9b01466] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Wangshui Cai
- Institute of Chemistry & BioMedical Sciences, Nanjing University, Nanjing 210023, China
| | - Junxian Wu
- Institute of Chemistry & BioMedical Sciences, Nanjing University, Nanjing 210023, China
| | - Haowei Zhang
- Institute of Chemistry & BioMedical Sciences, Nanjing University, Nanjing 210023, China
| | - Hitesh B. Jalani
- Institute of Chemistry & BioMedical Sciences, Nanjing University, Nanjing 210023, China
- Smart BioPharm, 310-Pilotplant, Incheon Techno-Park, 12-Gaetbeol-ro, Yeonsu-gu, Incheon 21999, South Korea
- College of Pharmacy, Yonsei University, 85-Songdogwahak-ro, Incheon 21983, South Korea
| | - Guigen Li
- Institute of Chemistry & BioMedical Sciences, Nanjing University, Nanjing 210023, China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Hongjian Lu
- Institute of Chemistry & BioMedical Sciences, Nanjing University, Nanjing 210023, China
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31
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Marichev KO, Doyle MP. Catalytic asymmetric cycloaddition reactions of enoldiazo compounds. Org Biomol Chem 2019; 17:4183-4195. [PMID: 30924829 PMCID: PMC6484446 DOI: 10.1039/c9ob00478e] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review describes catalytic asymmetric cycloaddition reactions of silyl-protected enoldiazo compounds for the construction of highly functionalized carbo- and heterocycles which possess one or more chiral center(s). The enoldiazo compound or its derivative, donor-acceptor cyclopropene, form electrophilic vinylogous metal carbene intermediates that combine stepwise with nucleophilic dipolar reactants to form products from [3 + 1]-, [3 + 2]-, [3 + 3]-, [3 + 4]-, and [3 + 5]-cycloaddition, generally in high yield and with exceptional stereocontrol and regioselectivity.
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Affiliation(s)
- Kostiantyn O. Marichev
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, USA.
| | - Michael P. Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, USA.
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32
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Lam H, Qureshi Z, Wegmann M, Lautens M. Transition‐Metal‐Free [4+3]‐Cycloaddition of
ortho
‐Quinone Methides and Isomünchnones: Catalytic and Diastereoselective Assembly of Oxa‐bridged Oxazocine Scaffolds. Angew Chem Int Ed Engl 2018; 57:16185-16189. [DOI: 10.1002/anie.201810760] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Heather Lam
- Davenport LaboratoriesDepartment of ChemistryUniversity of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| | - Zafar Qureshi
- Davenport LaboratoriesDepartment of ChemistryUniversity of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| | - Marcus Wegmann
- Davenport LaboratoriesDepartment of ChemistryUniversity of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| | - Mark Lautens
- Davenport LaboratoriesDepartment of ChemistryUniversity of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
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33
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Lam H, Qureshi Z, Wegmann M, Lautens M. Transition‐Metal‐Free [4+3]‐Cycloaddition of
ortho
‐Quinone Methides and Isomünchnones: Catalytic and Diastereoselective Assembly of Oxa‐bridged Oxazocine Scaffolds. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810760] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Heather Lam
- Davenport LaboratoriesDepartment of ChemistryUniversity of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| | - Zafar Qureshi
- Davenport LaboratoriesDepartment of ChemistryUniversity of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| | - Marcus Wegmann
- Davenport LaboratoriesDepartment of ChemistryUniversity of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
| | - Mark Lautens
- Davenport LaboratoriesDepartment of ChemistryUniversity of Toronto 80 St. George St. Toronto Ontario M5S 3H6 Canada
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34
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Fan C, He X, Zuo Y, Shang Y. Synthesis of oxazole and furan derivatives via Rh2(OAc)4-catalyzed C≡X bond insertion of cyclic 2-diazo-1,3-diketones with nitriles and arylacetylenes. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1473441] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Chenli Fan
- Department of Material Engineering, Wuhu Institute of Technology, Wuhu, P.R. China
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, P.R. China
| | - Xinwei He
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, P.R. China
| | - Yin Zuo
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, P.R. China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu, P.R. China
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35
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Loskutova NL, Shvydkiy NV, Nelyubina YV, Perekalin DS. Insertion of carbenoids into X-H bonds catalyzed by the cyclobutadiene rhodium complexes. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2017.08.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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36
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Tsuruda K, Tokumoto T, Inoue N, Nakajima M, Nemoto T. Synthesis of 7-Membered Ring Carbocycles via a Palladium-Catalyzed Intramolecular Allylic Alkylation-Isomerization-Cope Rearrangement Cascade. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800230] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Kazuki Tsuruda
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1, Inohana, Chuo-ku 260-8675 Chiba Japan
| | - Takahisa Tokumoto
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1, Inohana, Chuo-ku 260-8675 Chiba Japan
| | - Naoya Inoue
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1, Inohana, Chuo-ku 260-8675 Chiba Japan
| | - Masaya Nakajima
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1, Inohana, Chuo-ku 260-8675 Chiba Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences; Chiba University; 1-8-1, Inohana, Chuo-ku 260-8675 Chiba Japan
- Molecular Chirality Research Center; Chiba University; 1-33, Yayoi-cho, Inage-ku 263-8522 Chiba Japan
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37
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Xu G, Chen L, Sun J. Rhodium-Catalyzed Asymmetric Dearomative [4 + 3]-Cycloaddition of Vinylindoles with Vinyldiazoacetates: Access to Cyclohepta[b]indoles. Org Lett 2018; 20:3408-3412. [DOI: 10.1021/acs.orglett.8b01353] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Long Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
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38
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Fu L, Hoang K, Tortoreto C, Liu W, Davies HML. Formation of Tertiary Alcohols from the Rhodium-Catalyzed Reactions of Donor/Acceptor Carbenes with Esters. Org Lett 2018; 20:2399-2402. [PMID: 29641207 DOI: 10.1021/acs.orglett.8b00739] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Rhodium(II)-catalyzed reactions between isopropyl acetate and trichloroethyl aryldiazoacetates result in the formation of oxirane intermediates that ring open under the reaction conditions to form tertiary alcohols. When the reaction is catalyzed by the dirhodium tetrakis(triarylcyclopropanecarboxylate) complex, Rh2( S-2-Cl,4-BrTPCP)4, the tertiary alcohols are formed with good asymmetric induction (80-88% ee).
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Affiliation(s)
- Liangbing Fu
- Department of Chemistry , Emory University , 1515 Dickey Drive , Atlanta , Georgia 30322 , United States
| | - Kevin Hoang
- Department of Chemistry , Emory University , 1515 Dickey Drive , Atlanta , Georgia 30322 , United States
| | - Cecilia Tortoreto
- Department of Chemistry , Emory University , 1515 Dickey Drive , Atlanta , Georgia 30322 , United States
| | - Wenbin Liu
- Department of Chemistry , Emory University , 1515 Dickey Drive , Atlanta , Georgia 30322 , United States
| | - Huw M L Davies
- Department of Chemistry , Emory University , 1515 Dickey Drive , Atlanta , Georgia 30322 , United States
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39
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Zhao HW, Liu YY, Zhao YD, Feng NN, Du J, Song XQ, Pang HL, Chen XQ. Base-Catalyzed Formal [3+2] Cycloaddition of Diazooxindoles with Oxazol-5-(4H
)-ones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701496] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hong-Wu Zhao
- College of Life Science and Bio-engineering; Beijing University of Technology; 100124 Beijing P. R. China
| | - Yue-Yang Liu
- College of Life Science and Bio-engineering; Beijing University of Technology; 100124 Beijing P. R. China
| | - Yu-Di Zhao
- College of Life Science and Bio-engineering; Beijing University of Technology; 100124 Beijing P. R. China
| | - Ning-Ning Feng
- College of Life Science and Bio-engineering; Beijing University of Technology; 100124 Beijing P. R. China
| | - Juan Du
- College of Life Science and Bio-engineering; Beijing University of Technology; 100124 Beijing P. R. China
| | - Xiu-Qing Song
- College of Life Science and Bio-engineering; Beijing University of Technology; 100124 Beijing P. R. China
| | - Hai-Liang Pang
- College of Life Science and Bio-engineering; Beijing University of Technology; 100124 Beijing P. R. China
| | - Xiao-Qin Chen
- College of Life Science and Bio-engineering; Beijing University of Technology; 100124 Beijing P. R. China
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40
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Yin Z, He Y, Chiu P. Application of (4+3) cycloaddition strategies in the synthesis of natural products. Chem Soc Rev 2018; 47:8881-8924. [DOI: 10.1039/c8cs00532j] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This review summarizes the applications of (4+3) cycloadditions, both classical and formal, in the syntheses of natural products in the last two decades.
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Affiliation(s)
- Zengsheng Yin
- Department of Chemistry
- State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
- P. R. China
| | - Yun He
- Department of Chemistry
- State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
- P. R. China
| | - Pauline Chiu
- Department of Chemistry
- State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
- P. R. China
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41
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42
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Cheng QQ, Deng Y, Lankelma M, Doyle MP. Cycloaddition reactions of enoldiazo compounds. Chem Soc Rev 2017; 46:5425-5443. [PMID: 28726896 PMCID: PMC5575991 DOI: 10.1039/c7cs00324b] [Citation(s) in RCA: 193] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Enoldiazo esters and amides have proven to be versatile reagents for cycloaddition reactions that allow highly efficient construction of various carbocycles and heterocycles. Their versatility is exemplified by (1) [2+n]-cycloadditions (n = 3, 4) by the enol silyl ether units of enoldiazo compounds with retention of the diazo functionality to furnish α-cyclic-α-diazo compounds that are themselves subject to further transformations of the diazo functional group; (2) [3+n]-cycloadditions (n = 1-5) by metallo-enolcarbenes formed by catalytic dinitrogen extrusion from enoldiazo compounds; (3) [2+n]-cycloadditions (n = 3, 4) by donor-acceptor cyclopropenes generated in situ from enoldiazo compounds that produce cyclopropane-fused ring systems. The role of dirhodium(ii) and the emergence of copper(i) catalysts are described, as are the different outcomes of reactions initiated with these catalysts. This comprehensive review on cycloaddition reactions of enoldiazo compounds, with emphasis on methodology development, mechanistic insight, and catalyst-controlled chemodivergence, aims to provide inspiration for future discoveries in the field and to catalyze the application of enoldiazo reagents by the wider synthetic community.
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Affiliation(s)
- Qing-Qing Cheng
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, USA.
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43
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Cheng QQ, Lankelma M, Wherritt D, Arman H, Doyle MP. Divergent Rhodium-Catalyzed Cyclization Reactions of Enoldiazoacetamides with Nitrosoarenes. J Am Chem Soc 2017; 139:9839-9842. [DOI: 10.1021/jacs.7b05840] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qing-Qing Cheng
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Marianne Lankelma
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Daniel Wherritt
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Hadi Arman
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Michael P. Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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44
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Total synthesis of (-)-tubingensin B enabled by the strategic use of an aryne cyclization. Nat Chem 2017; 9:944-949. [PMID: 28937679 DOI: 10.1038/nchem.2801] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 05/10/2017] [Indexed: 11/08/2022]
Abstract
Tubingensin B is an indole diterpenoid that bears a daunting chemical structure featuring a disubstituted carbazole unit, five stereogenic centres-three of which are quaternary-and a decorated [3.2.2]-bridged bicycle. We describe our synthetic design toward a concise and enantiospecific total synthesis of tubingensin B, which hinges on the strategic use of a transient aryne intermediate. Although initial studies led to unexpected reaction outcomes, we ultimately implemented a sequence of carbazolyne cyclization followed by Rh-catalysed fragmentation to install the seven-membered ring and vicinal quaternary stereocentres of the natural product. Coupled with a late-stage radical cyclization to construct the [3.2.2]-bridged bicycle, these efforts have enabled the total synthesis of tubingensin B. The design and evolution of our succinct total synthesis underscores the utility of long-avoided aryne intermediates for the introduction of structural motifs that have conventionally been viewed as challenging.
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45
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Marichev KO, Ramey JT, Arman H, Doyle MP. Highly Regio-, Diastereo-, and Enantioselective Rhodium-Catalyzed Intramolecular Cyclopropanation of (Z)-1,3-Dienyl Aryldiazoacetates. Org Lett 2017; 19:1306-1309. [DOI: 10.1021/acs.orglett.7b00119] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kostiantyn O. Marichev
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Justin T. Ramey
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Hadi Arman
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Michael P. Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
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46
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Yang C, He X, Zhang L, Han G, Zuo Y, Shang Y. Synthesis of Isocoumarins from Cyclic 2-Diazo-1,3-diketones and Benzoic Acids via Rh(III)-Catalyzed C–H Activation and Esterification. J Org Chem 2017; 82:2081-2088. [DOI: 10.1021/acs.joc.6b02906] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Cheng Yang
- Key Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Xinwei He
- Key Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Lanlan Zhang
- Key Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Guang Han
- Key Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Youpeng Zuo
- Key Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
| | - Yongjia Shang
- Key Laboratory of Functional
Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based
Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
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47
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Chinthapally K, Massaro NP, Padgett HL, Sharma I. A serendipitous cascade of rhodium vinylcarbenoids with aminochalcones for the synthesis of functionalized quinolines. Chem Commun (Camb) 2017; 53:12205-12208. [DOI: 10.1039/c7cc07181g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A convergent 5-step cascade approach for the stereoselective synthesis of functionalized quinolines.
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Affiliation(s)
- Kiran Chinthapally
- Department of Chemistry and Biochemistry
- and Institute of Natural Products Applications and Research Technologies
- University of Oklahoma
- Norman
- USA
| | - Nicholas P. Massaro
- Department of Chemistry and Biochemistry
- and Institute of Natural Products Applications and Research Technologies
- University of Oklahoma
- Norman
- USA
| | - Haylee L. Padgett
- Department of Chemistry and Biochemistry
- and Institute of Natural Products Applications and Research Technologies
- University of Oklahoma
- Norman
- USA
| | - Indrajeet Sharma
- Department of Chemistry and Biochemistry
- and Institute of Natural Products Applications and Research Technologies
- University of Oklahoma
- Norman
- USA
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48
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He X, Zhou Y, Shang Y, Yang C, Zuo Y. Synthesis of 2-Arylimino-6,7-dihydrobenzo[ d][1,3]oxathiol-4(5 H)-ones via Rh 2(OAc) 4-Catalyzed Reactions of Cyclic 2-Diazo-1,3-diketones with Aryl Isothiocyanates. ACS OMEGA 2016; 1:1277-1283. [PMID: 31457195 PMCID: PMC6640800 DOI: 10.1021/acsomega.6b00295] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 12/07/2016] [Indexed: 06/10/2023]
Abstract
A convenient and efficient synthesis of 2-arylimino-6,7-dihydrobenzo[d][1,3]oxathiol-4(5H)-ones was developed via a Rh2(OAc)4-catalyzed reaction of cyclic 2-diazo-1,3-diketones and aryl isothiocyanates in acetone at 60 °C. This reaction uses readily available stable cyclic 2-diazo-1,3-diketones as a starting material and generates the desired products in good to excellent yields (78-93%). The reaction proceeds under mild reaction conditions, produces only N2 as the byproduct, and features a broad substrate scope. A plausible mechanism for this reaction is also discussed.
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49
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Shved AS, Tabolin AA, Novikov RA, Nelyubina YV, Timofeev VP, Ioffe SL. Six-Membered Cyclic Nitroso Acetals: Synthesis and Studies of the Nitrogen Inversion Process ofN-Silyloxy-3,6-dihydro-2H-1,2-oxazines. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600952] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Alexander S. Shved
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences; Leninsky prosp. 47 119991 Moscow Russian Federation
- Higher Chemical College; D. I. Mendeleev University of Chemical Technology of Russia; Miusskaya sq. 9 125047 Moscow Russian Federation
| | - Andrey A. Tabolin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences; Leninsky prosp. 47 119991 Moscow Russian Federation
| | - Roman A. Novikov
- V. A. Engelhardt Institute of Molecular Biology; Russian Academy of Sciences; Vavilov str. 32 119991 Moscow Russian Federation
| | - Yulia V. Nelyubina
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; Vavilov str. 28 119991 Moscow Russian Federation
| | - Vladimir P. Timofeev
- V. A. Engelhardt Institute of Molecular Biology; Russian Academy of Sciences; Vavilov str. 32 119991 Moscow Russian Federation
| | - Sema L. Ioffe
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences; Leninsky prosp. 47 119991 Moscow Russian Federation
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50
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Nguyen TQ, Alqurafi M, Edwards C, Nguyen P, Kim J, Casco S, Bennet M, Chiang C, Lohry M, Cox M, Meshram B, Le D, Kim E, Smriti S, Oelschlaeger P, Buynak JD. Functionalizing the γ-Position of α-Diazo-β-ketoesters. Tetrahedron Lett 2016; 57:3330-3333. [PMID: 27956752 DOI: 10.1016/j.tetlet.2016.06.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Although α-diazo-β-ketoesters are synthetically versatile intermediates, methodology for introducing this functionality into complex molecules is still limited, most frequently involving a carboxylic acid precursor, which is then activated and transformed into a β-ketoester, with the diazo group being subsequently added with a diazo transfer reagent. While introducing this highly functional moiety in a convergent one step process would be ideal, such an objective is limited by the relatively few studies which address functionalization of the α-diazo-β-ketoester at the γ-position. In the present investigation, we evaluate strategies, both new and established, for functionalizing α-diazo-β-ketoesters, particularly with regard to generating compounds prospectively useful in the synthesis of C1-substituted carbapenems. We report the first δ-aldehydo-α-diazo-β-ketoester as well as a method for its oxidation to the corresponding methyl ester, and the formation of a new substituted pyrazole under basic conditions.
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Affiliation(s)
- Thu Q Nguyen
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Maha Alqurafi
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Cash Edwards
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Pauline Nguyen
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Jean Kim
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Samuel Casco
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Maricka Bennet
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Christopher Chiang
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Maureen Lohry
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Melina Cox
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Byron Meshram
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Duyen Le
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Eugene Kim
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Snigdha Smriti
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
| | - Peter Oelschlaeger
- Department of Pharmaceutical Sciences, College of Pharmacy, Western University of Health Sciences, 309 East Second St., Pomona, California, 91768, USA
| | - John D Buynak
- Department of Chemistry, Southern Methodist University, Dallas, TX, 75275-0314 USA
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