1
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Narra RR, Unnithan VG, Liu Y, Guo Z. Rapid Access to Divergent Fused Polycycles Via One-Pot A 3 Coupling and Intramolecular Diels-Alder Reaction. Chemistry 2024; 30:e202401449. [PMID: 38749918 DOI: 10.1002/chem.202401449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Indexed: 06/29/2024]
Abstract
Divergent nitrogen-containing fused polycyclic ring systems are constructed from simple starting materials via a one-pot aldehyde-alkyne-amine (A3) coupling and intramolecular Diels-Alder reaction. This domino reaction directly furnishes linear 5/5/5 and 5/5/6, or nonlinear 5/5/6/5, polycyclic rings containing an oxa-bridged fused 5/5 bicycle and a 1,6-enyne substructure. One-step derivation of the oxa-bridged 5/5 bicycle leads to a polyfunctionalized 5/5 bicycle with tetrahydrofuran fused back-to-back to pyrroline or a 6/5 bicycle with the hexahydro-1H-isoindole structure, while cycloisomerizing the enyne substructure adds an extra fused 5-membered ring to afford functionalized linear 5/5/5/5 or 5/5/5/5/5 fused ring systems from selected substrates. In addition, the one-pot product can be designed so that the alkyne moiety is hydroalkoxylated to form an additional heterocyle in a linear 5/5/5/6 or nonlinear 5/5/6/5/5 ring system. This diversity-oriented synthetic approach thus allows rapid access to an under-explored structural space for discovery of new biological or non-biological activities or functions.
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Affiliation(s)
- Rajashekar Reddy Narra
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | | | - Yifan Liu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Zhihong Guo
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
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2
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Zhu X, Li Y, Luo H, Li J, Hua Y, Liu G, Li L, Liu R. Propargylic Dialkyl Effect for Cyclobutene Formation through Ir(III)-Catalyzed Cycloisomerization of 1,6-Enynes. Org Lett 2024; 26:966-970. [PMID: 38270400 DOI: 10.1021/acs.orglett.3c04330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
The propargylic dialkyl effect (PDAE) has a significant impact on the cyclization reaction of enynes, partly reflected in changing the types of products. Herein, we described the influence of the propargylic dialkyl effect on the Ir(III)-catalyzed cycloisomerization of 1,6-enynes to provide strained cyclobutenes. A series of substituted 1,6-enynes were proved to be excellent substrate candidates in the presence of [Cp*IrCl2]2 in toluene. Mechanistic investigation, based on deuterium labeling experiments and control experiments, indicated that the propargylic dialkyl effect might boost C(sp)-H activation by preventing the coordination of active iridium species to the C(sp)≡C(sp) bond of enynes. This finding contributes to the fundamental understanding of enyne cyclization reactions and offers valuable insight into the propargylic dialkyl effect.
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Affiliation(s)
- Xuanyu Zhu
- Shanghai Frontiers Science Center of Biomimetic Catalysis, Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Normal University, Shanghai 200234, China
| | - Yi Li
- Shanghai Frontiers Science Center of Biomimetic Catalysis, Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Normal University, Shanghai 200234, China
| | - Hongtao Luo
- Shanghai Frontiers Science Center of Biomimetic Catalysis, Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Normal University, Shanghai 200234, China
| | - Jing Li
- Shanghai Frontiers Science Center of Biomimetic Catalysis, Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Normal University, Shanghai 200234, China
| | - Yuhui Hua
- Shanghai Frontiers Science Center of Biomimetic Catalysis, Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Normal University, Shanghai 200234, China
| | - Guohua Liu
- Shanghai Frontiers Science Center of Biomimetic Catalysis, Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Normal University, Shanghai 200234, China
| | - Lingling Li
- Instrumental Analysis Center of Shanghai Jiao Tong University, Shanghai 200240, China
| | - Rui Liu
- Shanghai Frontiers Science Center of Biomimetic Catalysis, Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Shanghai Normal University, Shanghai 200234, China
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3
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García-Padilla E, Maseras F, Echavarren AM. Gold(I)-Catalyzed 1,6-Enyne Single-Cleavage Rearrangements: The Complete Picture. ACS ORGANIC & INORGANIC AU 2023; 3:312-320. [PMID: 37810414 PMCID: PMC10557124 DOI: 10.1021/acsorginorgau.3c00028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 10/10/2023]
Abstract
We identify the factors that rule the selectivity in single-cleavage skeletal rearrangements promoted by gold(I) catalysts. We find that stereoconvergence is enabled by a rotational equilibrium when electron-rich substituents are used. The anomalous Z-selective skeletal rearrangement is found to be due to electronic factors, whereas endo-selectivity depends on both steric and electronic factors.
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Affiliation(s)
- Eduardo García-Padilla
- Institute
of Chemical Research of Catalonia (ICIQ-CERCA), The 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
| | - Feliu Maseras
- Institute
of Chemical Research of Catalonia (ICIQ-CERCA), The 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-CERCA), The 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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4
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Kramm F, Ullwer F, Klinnert B, Zheng M, Plietker B. Iron‐Catalyzed Cycloisomerization and C−C Bond Activation to Access Non‐canonical Tricyclic Cyclobutanes. Angew Chem Int Ed Engl 2022; 61:e202205169. [PMID: 35818786 PMCID: PMC9546230 DOI: 10.1002/anie.202205169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Indexed: 11/15/2022]
Abstract
Cycloisomerizations are powerful skeletal rearrangements that allow the construction of complex molecular architectures in an atom‐economic way. We present here an unusual type of cyclopropyl enyne cycloisomerization that couples the process of a cycloisomerization with the activation of a C−C bond in cyclopropanes. A set of substituted non‐canonical tricyclic cyclobutanes were synthesized under mild conditions using [(Ph3P)2Fe(CO)(NO)]BF4 as catalyst in good to excellent yields with high levels of stereocontrol.
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Affiliation(s)
- Frederik Kramm
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Franziska Ullwer
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Benedict Klinnert
- Lehrstuhl für Organische Chemie I Fakultät Chemie und Lebensmittelchemie TU Dresden Bergstraße 66 01069 Dresden Germany
| | - Min Zheng
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
- Lehrstuhl für Organische Chemie I Fakultät Chemie und Lebensmittelchemie TU Dresden Bergstraße 66 01069 Dresden Germany
| | - Bernd Plietker
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
- Lehrstuhl für Organische Chemie I Fakultät Chemie und Lebensmittelchemie TU Dresden Bergstraße 66 01069 Dresden Germany
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5
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Kramm F, Ullwer F, Zheng M, Plietker B, Klinnert B. Iron‐Catalyzed Cycloisomerization and C‐C Bond Activation to Access Non‐canonical Tricyclic Cyclobutanes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Frederik Kramm
- Universität Stuttgart Fakultät 3 Chemie: Universitat Stuttgart Fakultat 3 Chemie Institut für Organische Chemie GERMANY
| | - Franziska Ullwer
- Universität Stuttgart Fakultät 3 Chemie: Universitat Stuttgart Fakultat 3 Chemie Institut für Organische Chemie GERMANY
| | - Min Zheng
- Technische Universität Dresden: Technische Universitat Dresden Fakultät Chemie und Lebensmittelchemie GERMANY
| | - Bernd Plietker
- Dresden University of Technology: Technische Universitat Dresden Organische Chemie I Fakultät für Chemie und Lebensmittelchemie 01062 Dresden GERMANY
| | - Benedict Klinnert
- Technische Universität Dresden: Technische Universitat Dresden Fakultät Chemie und Lebensmittelchemie GERMANY
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6
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Wong HNC, Peng XS, Zhong Z, Lyu MY, Ma HR. Pivotal Reactions in the Creation of the Polycyclic Skeleton of Cryptotrione. Synlett 2021. [DOI: 10.1055/a-1472-4594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
AbstractThree pivotal reactions, namely, enyne cycloisomerization, polyene cyclization, and quinone methide formation, are applied to synthesize the complex polycyclic skeleton of cryptotrione. This review summarizes the most prominent applications of these three reactions to the total syntheses of natural products, covering results published in the literature between 2011 and 2020.1 Introduction2 Three Pivotal Reactions Applied to Create the Polycyclic Framework of Cryptotrione2.1 Enyne Cycloisomerization2.2 Polyene Cyclization2.3 Quinone Methide Formation3 Conclusion
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Affiliation(s)
- Henry N. C. Wong
- School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen)
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong
| | - Xiao-Shui Peng
- School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen)
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong
| | - Zhuliang Zhong
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong
| | - Mao-Yun Lyu
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong
| | - Hao-Ran Ma
- School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen)
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7
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Sato D, Watanabe Y, Noguchi K, Kanazawa J, Miyamoto K, Uchiyama M, Saito A. BF 3-Catalyzed Skeletal Rearrangement of 7-En-2-ynones to endo-Type Cyclic Dienes. Org Lett 2020; 22:4063-4067. [PMID: 32255350 DOI: 10.1021/acs.orglett.0c00949] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Transition-metal-catalyzed cycloisomerization reactions with skeletal rearrangement of 1,n-enynes to afford cyclic dienes (particularly exo-cyclization products) have been well studied. However, there are few reports on the nonmetal-catalyzed skeletal rearrangement of enynes and skeletal rearrangement of electron-deficient enynes such as n-en-2-ynones. Here, we describe BF3·MeCN-catalyzed synthesis of 3-alkylidenecyclohexenes from 7-en-2-ynones, representing the first nonmetal-catalyzed skeletal rearrangement of 1,6-enynes to endo-type cyclic dienes.
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Affiliation(s)
- Daisuke Sato
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Yuichiro Watanabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Keiichi Noguchi
- Instrumentation Analysis Center, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Junichiro Kanazawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Akio Saito
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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8
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Iridium-Catalyzed Dehydrogenative Reactions. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_56] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Sequentially rhodium-catalyzed enantioselective cycloisomerization–hydrogenation syntheses of alkylidene butyrolactone β-hydroxyethanes and alkylidene tetrahydrofuran β-aminoethanes. Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2267-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Su Y, Inglesby PA, Evans PA. Intramolecular Thioether Migration in the Rhodium‐Catalyzed Ene‐Cycloisomerization of Alkenylidenecyclopropanes by a Metal‐Mediated β‐Sulfide Elimination. Angew Chem Int Ed Engl 2018; 57:673-677. [DOI: 10.1002/anie.201709059] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 09/29/2017] [Indexed: 01/20/2023]
Affiliation(s)
- Yu Su
- Department of ChemistryQueen's University 90 Bader Lane Kingston ON K7L 3N6 Canada
| | - Phillip A. Inglesby
- Department of ChemistryUniversity of Liverpool Crown Street Liverpool L69 7ZD UK
| | - P. Andrew Evans
- Department of ChemistryQueen's University 90 Bader Lane Kingston ON K7L 3N6 Canada
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11
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Su Y, Inglesby PA, Evans PA. Intramolecular Thioether Migration in the Rhodium‐Catalyzed Ene‐Cycloisomerization of Alkenylidenecyclopropanes by a Metal‐Mediated β‐Sulfide Elimination. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yu Su
- Department of ChemistryQueen's University 90 Bader Lane Kingston ON K7L 3N6 Canada
| | - Phillip A. Inglesby
- Department of ChemistryUniversity of Liverpool Crown Street Liverpool L69 7ZD UK
| | - P. Andrew Evans
- Department of ChemistryQueen's University 90 Bader Lane Kingston ON K7L 3N6 Canada
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12
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Takamoto K, Ohno S, Hyogo N, Fujioka H, Arisawa M. Ruthenium-Catalyzed 1,6-Aromatic Enamide–Silylalkyne Cycloisomerization: Approach to 2,3-Disubstituted Indoles. J Org Chem 2017; 82:8733-8742. [DOI: 10.1021/acs.joc.7b01288] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kohei Takamoto
- Graduate School of Pharmaceutical
Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Shohei Ohno
- Graduate School of Pharmaceutical
Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Norimichi Hyogo
- Graduate School of Pharmaceutical
Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Hiromichi Fujioka
- Graduate School of Pharmaceutical
Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Mitsuhiro Arisawa
- Graduate School of Pharmaceutical
Sciences, Osaka University, 1-6 Yamada-oka, Suita, Osaka 565-0871, Japan
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13
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Hu Y, Bai M, Yang Y, Zhou Q. Metal-catalyzed enyne cycloisomerization in natural product total synthesis. Org Chem Front 2017. [DOI: 10.1039/c7qo00702g] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enyne cycloisomerization has become a powerful and attractive strategy for the construction of cyclic compounds, thus possessing great potential for applications in total synthesis of natural products and pharmaceuticals.
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Affiliation(s)
- Ying Hu
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | - Miao Bai
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | - Ying Yang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | - Qianghui Zhou
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
- The Institute for Advanced Studies
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14
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Dieckmann M, Jang YS, Cramer N. Chiral Cyclopentadienyl Iridium(III) Complexes Promote Enantioselective Cycloisomerizations Giving Fused Cyclopropanes. Angew Chem Int Ed Engl 2015; 54:12149-52. [DOI: 10.1002/anie.201506483] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Indexed: 11/12/2022]
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15
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Dieckmann M, Jang YS, Cramer N. Chiral Cyclopentadienyl Iridium(III) Complexes Promote Enantioselective Cycloisomerizations Giving Fused Cyclopropanes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506483] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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16
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Kim S, Chung YK. Rhodium-Catalyzed Carbonylative [3 + 2 + 1] Cycloaddition of Alkyne-Tethered Alkylidenecyclopropanes to Phenols in the Presence of Carbon Monoxide. Org Lett 2014; 16:4352-5. [DOI: 10.1021/ol5015224] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Seyun Kim
- Center for New Directions
in Organic Synthesis, Department of Chemistry, College of Natural
Sciences, Seoul National University, Seoul 151-747, Korea
| | - Young Keun Chung
- Center for New Directions
in Organic Synthesis, Department of Chemistry, College of Natural
Sciences, Seoul National University, Seoul 151-747, Korea
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17
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Masutomi K, Noguchi K, Tanaka K. Enantioselective Cycloisomerization of 1,6-Enynes to Bicyclo[3.1.0]hexanes Catalyzed by Rhodium and Benzoic Acid. J Am Chem Soc 2014; 136:7627-30. [DOI: 10.1021/ja504048u] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Koji Masutomi
- Department
of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - Keiichi Noguchi
- Instrumentation
Analysis Center, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - Ken Tanaka
- Department
of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
- Department
of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
- Japan Science
and Technology Agency, ACT-C, 4-1-8
Honcho, Kawaguchi, Saitama, 332-0012, Japan
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18
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Nakae T, Yasunaga T, Kamiya M, Fukumoto Y, Chatani N. Skeletal Reorganization of Enynes Catalyzed by a Ru(II)–Ru(III) Mixed-valence Complex under an Atmosphere of O2 or CO. CHEM LETT 2013. [DOI: 10.1246/cl.130785] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Takahiro Nakae
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
| | - Tomohiko Yasunaga
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
| | - Motonobu Kamiya
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
| | - Yoshiya Fukumoto
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University
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19
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Thakur A, Facer ME, Louie J. Nickel-catalyzed cycloaddition of 1,3-dienes with 3-azetidinones and 3-oxetanones. Angew Chem Int Ed Engl 2013; 52:12161-5. [PMID: 24573793 PMCID: PMC4113093 DOI: 10.1002/anie.201306869] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Indexed: 01/16/2023]
Affiliation(s)
- Ashish Thakur
- Department of Chemistry, University of Utah 315 South, 1400 East, Salt Lake City, Utah 84112-0850 (USA)
| | - Megan E. Facer
- Department of Chemistry, University of Utah 315 South, 1400 East, Salt Lake City, Utah 84112-0850 (USA)
| | - Janis Louie
- Department of Chemistry, University of Utah 315 South, 1400 East, Salt Lake City, Utah 84112-0850 (USA)
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20
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Thakur A, Facer ME, Louie J. Nickel-Catalyzed Cycloaddition of 1,3-Dienes with 3-Azetidinones and 3-Oxetanones. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306869] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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21
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Corkey BK, Heller ST, Wang YM, Toste FD. Enantioselective cyclization of enamide-ynes and application to the synthesis of the kopsifoline core. Tetrahedron 2013; 69:5640-5646. [PMID: 23772095 DOI: 10.1016/j.tet.2013.02.091] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We report the palladium-catalyzed enantioselective cyclization of 1,6-enamidynes to form spirocyclic ring systems. We applied this methodology to the concise synthesis of the skeletal core of the kopsifoline alkaloids.
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Affiliation(s)
- Britton K Corkey
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
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22
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Ishida M, Tanaka K. One-Pot Cycloisomerization/Hetero-Diels–Alder Reaction of 1,6-Enynes with Aldehydes Catalyzed by Rhodium and a Brønsted Acid. Org Lett 2013; 15:2120-3. [DOI: 10.1021/ol4005849] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Mana Ishida
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan, and JST, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan
| | - Ken Tanaka
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan, and JST, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan
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23
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Gimbert Y, Fensterbank L, Gandon V, Goddard JP, Lesage D. Ligand Effect in Platinum-Catalyzed Cycloisomerization of 1,6-Enynes: Water or Carbon Monoxide, a Similar Role despite Distinct Electronic Properties? Organometallics 2013. [DOI: 10.1021/om301104r] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yves Gimbert
- Department of Molecular Chemistry, DCM UMR 5250-ICMG,
FR 2607 CNRS-Université Joseph Fourier, BP 53, 38041 Grenoble cedex 9, France
| | - Louis Fensterbank
- Institut Parisien de Chimie
Moléculaire (UMR CNRS 7201), FR 2769 UPMC Université Paris 06, C. 229, 4 Place Jussieu, 75005 Paris, France
| | - Vincent Gandon
- ICMMO (UMR CNRS 8182), Université Paris-sud 11, 91405 Orsay cedex,
France
| | - Jean-Philippe Goddard
- Institut Parisien de Chimie
Moléculaire (UMR CNRS 7201), FR 2769 UPMC Université Paris 06, C. 229, 4 Place Jussieu, 75005 Paris, France
| | - Denis Lesage
- Institut Parisien de Chimie
Moléculaire (UMR CNRS 7201), FR 2769 UPMC Université Paris 06, C. 229, 4 Place Jussieu, 75005 Paris, France
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24
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Tigchelaar A, Tam W. Iridium-catalyzed intramolecular [4 + 2] cycloadditions of alkynyl halides. Beilstein J Org Chem 2012; 8:1765-70. [PMID: 23209510 PMCID: PMC3511010 DOI: 10.3762/bjoc.8.201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Accepted: 08/30/2012] [Indexed: 12/02/2022] Open
Abstract
Iridium-catalyzed intramolecular [4 + 2] cycloadditions of diene-tethered alkynyl halides were investigated by using [IrCl(cod)]2 as catalyst, and dppe was found to be the most suitable phosphine ligand for the reaction. No oxidative insertion of the iridium into the carbon–halide bond was observed, and the reactions proceeded to provide the halogenated cycloadducts in good yield (75–94%). These results are the first examples of cycloadditions of alkynyl halides using an iridium catalyst.
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Affiliation(s)
- Andrew Tigchelaar
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, Canada N1G 2W1
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25
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Kumar P, Zhang K, Louie J. An expeditious route to eight-membered heterocycles by nickel-catalyzed cycloaddition: low-temperature C(sp)2-C(sp)3 bond cleavage. Angew Chem Int Ed Engl 2012; 51:8602-6. [PMID: 22806996 PMCID: PMC3557805 DOI: 10.1002/anie.201203521] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Indexed: 12/31/2022]
Abstract
A cool break: 3-Azetidinone and a variety of diynes undergo a cycloaddition reaction catalyzed by Ni/IPr to give dihydroazocine compounds (see scheme; IPr=1,3-bis(2,6-diisopropylphenyl)imidazolidene). The reaction involves a challenging C(sp)2-C(sp)3 bond cleavage step, yet, surprisingly, proceeds at low temperature.
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Affiliation(s)
- Puneet Kumar
- Department of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112-0850
| | - Kainan Zhang
- Department of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112-0850
| | - Janis Louie
- Department of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112-0850
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26
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Kumar P, Zhang K, Louie J. An Expeditious Route to Eight‐Membered Heterocycles By Nickel‐Catalyzed Cycloaddition: Low‐Temperature CC Bond Cleavage. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203521] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Puneet Kumar
- Department of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112‐0850 (USA) http://www.chem.utah.edu/faculty/louie/index.html
| | - Kainan Zhang
- Department of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112‐0850 (USA) http://www.chem.utah.edu/faculty/louie/index.html
| | - Janis Louie
- Department of Chemistry, University of Utah, 315 South, 1400 East, Salt Lake City, Utah 84112‐0850 (USA) http://www.chem.utah.edu/faculty/louie/index.html
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27
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Gryparis C, Efe C, Raptis C, Lykakis IN, Stratakis M. Cyclization of 1,6-Enynes Catalyzed by Gold Nanoparticles Supported on TiO2: Significant Changes in Selectivity and Mechanism, as Compared to Homogeneous Au-Catalysis. Org Lett 2012; 14:2956-9. [DOI: 10.1021/ol301212j] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Charis Gryparis
- Department of Chemistry, University of Crete, Voutes 71003 Iraklion, Greece
| | - Christina Efe
- Department of Chemistry, University of Crete, Voutes 71003 Iraklion, Greece
| | - Christos Raptis
- Department of Chemistry, University of Crete, Voutes 71003 Iraklion, Greece
| | - Ioannis N. Lykakis
- Department of Chemistry, University of Crete, Voutes 71003 Iraklion, Greece
| | - Manolis Stratakis
- Department of Chemistry, University of Crete, Voutes 71003 Iraklion, Greece
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28
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Escribano-Cuesta A, Pérez-Galán P, Herrero-Gómez E, Sekine M, Braga AAC, Maseras F, Echavarren AM. The role of cyclobutenes in gold(I)-catalysed skeletal rearrangement of 1,6-enynes. Org Biomol Chem 2012; 10:6105-11. [PMID: 22648404 DOI: 10.1039/c2ob25419k] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1,6-Enynes with electron-donating substituents at the alkyne undergo gold(I)-catalysed single cleavage skeletal rearrangement, whereas substrates with electron-withdrawing substituents evolve selectively to double cleavage rearrangement. Theoretical calculations provide a qualitative rationale for these effects, and suggest that bicyclo[3.2.0]hept-5-enes are involved as intermediates. We provide the first X-ray structural evidence for the formation of a product of this class in a cycloisomerisation of a 1,6-enyne.
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Affiliation(s)
- Ana Escribano-Cuesta
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
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29
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Evans PA, Inglesby PA. Diastereoselective Rhodium-Catalyzed Ene-Cycloisomerization Reactions of Alkenylidenecyclopropanes: Total Synthesis of (−)-α-Kainic Acid. J Am Chem Soc 2012; 134:3635-8. [DOI: 10.1021/ja210804r] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- P. Andrew Evans
- Department of Chemistry, The University of Liverpool, Crown Street, Liverpool L69 7ZD, United
Kingdom
| | - Phillip A. Inglesby
- Department of Chemistry, The University of Liverpool, Crown Street, Liverpool L69 7ZD, United
Kingdom
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30
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31
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Fuente-Hernàndez A, Costes P, Kalck P, Jáuregui-Haza U, Dechy-Cabaret O, Urrutigoïty M. Contrasted effect of CO on the metal-catalyzed cycloisomerization of O-tethered enynes derived from monoterpenes. Appl Organomet Chem 2011. [DOI: 10.1002/aoc.1844] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Philippe Costes
- CNRS, LCC (Laboratoire de Chimie de Coordination); F-31077; Toulouse; France
| | - Philippe Kalck
- CNRS, LCC (Laboratoire de Chimie de Coordination); F-31077; Toulouse; France
| | - Ulises Jáuregui-Haza
- Instituto Superior de Tecnologias y Ciencias Aplicadas; Ciudad de la Habana; Cuba
| | - Odile Dechy-Cabaret
- CNRS, LCC (Laboratoire de Chimie de Coordination); F-31077; Toulouse; France
| | - Martine Urrutigoïty
- CNRS, LCC (Laboratoire de Chimie de Coordination); F-31077; Toulouse; France
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32
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Benedetti E, Simonneau A, Hours A, Amouri H, Penoni A, Palmisano G, Malacria M, Goddard JP, Fensterbank L. (Pentamethylcyclopentadienyl)Iridium Dichloride Dimer {[IrCp*Cl2]2}: A Novel Efficient Catalyst for the Cycloisomerizations of Homopropargylic Diols and N-Tethered Enynes. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100124] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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33
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Zhang Z, Shi M. Titanium(IV) Chloride-Mediated Carbocyclization of 1,6-Enynes: Selective Synthesis of 3-Azabicyclo[3.1.0]hexanes and Functionalized Allenes by Controlling the Reaction Temperature. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100129] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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34
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35
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36
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Liu Y, Zhang D, Zhou J, Liu C. Theoretical Elucidation of Au(I)-Catalyzed Cycloisomerizations of Cycloalkyl-substituted 1,5-Enynes: 1,2-alkyl Shift versus C−H Bond Insertion Products. J Phys Chem A 2010; 114:6164-70. [DOI: 10.1021/jp102542r] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuxia Liu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan 250100, P. R. China, and Department of Chemical Engineering, Shandong Institute of Light Industry, Jinan, 250353, P. R. China
| | - Dongju Zhang
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan 250100, P. R. China, and Department of Chemical Engineering, Shandong Institute of Light Industry, Jinan, 250353, P. R. China
| | - Jianhua Zhou
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan 250100, P. R. China, and Department of Chemical Engineering, Shandong Institute of Light Industry, Jinan, 250353, P. R. China
| | - Chengbu Liu
- Key Lab of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, Shandong University, Jinan 250100, P. R. China, and Department of Chemical Engineering, Shandong Institute of Light Industry, Jinan, 250353, P. R. China
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37
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Sim SH, Lee SI, Park JH, Chung YK. Iridium(I)-Catalyzed Cycloisomerization of Cyclohexadienyl Alkynes. Adv Synth Catal 2010. [DOI: 10.1002/adsc.200900578] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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38
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Kim SY, Chung YK. Rhodium(I)-Catalyzed Cycloisomerization of 1,6-Enynes to Bicyclo[4.1.0]heptenes. J Org Chem 2010; 75:1281-4. [DOI: 10.1021/jo902273x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sun Young Kim
- Intelligent Textile System Research Center, and Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 151-747, Korea
| | - Young Keun Chung
- Intelligent Textile System Research Center, and Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 151-747, Korea
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39
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Ez-Zoubir M, d'Herouville FLB, Brown JA, Ratovelomanana-Vidal V, Michelet V. Stereoselective Ir(iii)-catalyzed dimerization reaction of enynes: an entry to functionalized polyunsaturated and cyclic systems. Chem Commun (Camb) 2010; 46:6332-4. [DOI: 10.1039/c0cc00721h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Körber N, Rominger F, Müller TJ. Novel Enantioselective Sequentially Rhodium(I)/BINAP- Catalyzed CycloisomerizationâHydrogenationâIsomerizationâ Acetalization (CIHIA). Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900494] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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Ota K, Lee SI, Tang JM, Takachi M, Nakai H, Morimoto T, Sakurai H, Kataoka K, Chatani N. Rh(II)-Catalyzed Skeletal Reorganization of 1,6- and 1,7-Enynes through Electrophilic Activation of Alkynes. J Am Chem Soc 2009; 131:15203-11. [DOI: 10.1021/ja9047637] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kazusa Ota
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Sang Ick Lee
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Jhih-Meng Tang
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Manabu Takachi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hiromi Nakai
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tsumoru Morimoto
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hitoshi Sakurai
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Ken Kataoka
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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42
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Lee YT, Kang YK, Chung YK. Au(I)-Catalyzed Cycloisomerization Reaction of Amide- or Ester-Tethered 1,6-Enynes to Bicyclo[3.2.0]hept-6-en-2-ones. J Org Chem 2009; 74:7922-34. [DOI: 10.1021/jo901771p] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Young Tak Lee
- Intelligent Textile System Research Center, Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 151-747, Korea
| | - Youn Kyung Kang
- Division of Chemistry and Molecular Engineering, Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 151-747, Korea
| | - Young Keun Chung
- Intelligent Textile System Research Center, Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 151-747, Korea
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43
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Lee YJ, Schrock RR, Hoveyda AH. Endo-selective enyne ring-closing metathesis promoted by stereogenic-at-Mo monoalkoxide and monoaryloxide complexes. Efficient synthesis of cyclic dienes not accessible through reactions with Ru carbenes. J Am Chem Soc 2009; 131:10652-61. [PMID: 19580318 PMCID: PMC2849279 DOI: 10.1021/ja904098h] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Stereogenic-at-Mo monoalkoxide and monoaryloxide complexes promote enyne ring-closing metathesis (RCM) reactions, affording the corresponding endo products with high selectivity (typically >98:<2 endo:exo). All catalysts can be prepared and used in situ. Five-, six-, and seven-membered rings are obtained through reactions with enyne substrates that bear all-carbon tethers as well as those that contain heteroatom substituents. The newly developed catalytic protocols complement the related exo-selective Ru-catalyzed processes. In cases where Ru-based complexes deliver exo and endo products nondiscriminately, such as when tetrasubstituted cyclic alkenes are generated, Mo-catalyzed reactions afford the endo product exclusively. The efficiency of synthesis of N- and O-containing endo diene heterocycles can be improved significantly through structural modification of Mo catalysts. The modularity of Mo-based monopyrrolides is thus exploited in the identification of the most effective catalyst variants. Through alteration of O-based monodentate ligands, catalysts have been identified that promote enyne RCM with improved efficiency. The structural attributes of three Mo complexes are elucidated through X-ray crystallography. The first examples of catalytic enantioselective enyne RCM reactions are reported (up to 98:2 enantiomer ratio and >98% endo).
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Affiliation(s)
- Yeon-Ju Lee
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, USA
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44
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Yao LF, Shi M. Lewis Acid Catalyzed Cascade Reactions of 1,6-Diynes and 1,6-Enynes with Vinylidenecyclopropanes. Chemistry 2009; 15:3875-81. [DOI: 10.1002/chem.200802284] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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Lee SI, Chatani N. Catalytic skeletal reorganization of enynes through electrophilicactivation of alkynes: double cleavage of C–C double and triple bonds. Chem Commun (Camb) 2009:371-84. [DOI: 10.1039/b812466c] [Citation(s) in RCA: 184] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Michaut A, Miranda-García S, Menéndez JC, Coquerel Y, Rodriguez J. Stereoselective Synthesis of Bicyclo[4.2.1]nonanes - a Temporary-Bridge Approach to Cyclooctanoids. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800702] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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47
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Jiménez-Núñez E, Claverie C, Bour C, Cárdenas D, Echavarren A. cis-Selective Single-Cleavage Skeletal Rearrangement of 1,6-Enynes Reveals the Multifaceted Character of the Intermediates in Metal-Catalyzed Cycloisomerizations. Angew Chem Int Ed Engl 2008; 47:7892-5. [DOI: 10.1002/anie.200803269] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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48
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Jiménez-Núñez E, Claverie C, Bour C, Cárdenas D, Echavarren A. cis-Selective Single-Cleavage Skeletal Rearrangement of 1,6-Enynes Reveals the Multifaceted Character of the Intermediates in Metal-Catalyzed Cycloisomerizations. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200803269] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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49
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Amijs CHM, López-Carrillo V, Raducan M, Pérez-Galán P, Ferrer C, Echavarren AM. Gold(I)-Catalyzed Intermolecular Addition of Carbon Nucleophiles to 1,5- and 1,6-Enynes. J Org Chem 2008; 73:7721-30. [DOI: 10.1021/jo8014769] [Citation(s) in RCA: 210] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Catelijne H. M. Amijs
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Verónica López-Carrillo
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Mihai Raducan
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Patricia Pérez-Galán
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Catalina Ferrer
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
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50
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Jiménez-Núñez E, Echavarren AM. Gold-catalyzed cycloisomerizations of enynes: a mechanistic perspective. Chem Rev 2008; 108:3326-50. [PMID: 18636778 DOI: 10.1021/cr0684319] [Citation(s) in RCA: 1821] [Impact Index Per Article: 113.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eloísa Jiménez-Núñez
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain
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