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Hong F, Shi C, Hong P, Zhai T, Zhu X, Lu X, Ye L. Copper‐Catalyzed Asymmetric Diyne Cyclization via [1,2]‐Stevens‐Type Rearrangement for the Synthesis of Chiral Chromeno[3,4‐
c
]pyrroles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115554] [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)
- Feng‐Lin Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Chong‐Yang Shi
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Pan Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Tong‐Yi Zhai
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xin‐Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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2
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Hong FL, Shi CY, Hong P, Zhai TY, Zhu XQ, Lu X, Ye LW. Copper-Catalyzed Asymmetric Diyne Cyclization via [1,2]-Stevens-Type Rearrangement for the Synthesis of Chiral Chromeno[3,4-c]pyrroles. Angew Chem Int Ed Engl 2021; 61:e202115554. [PMID: 34904775 DOI: 10.1002/anie.202115554] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Indexed: 12/21/2022]
Abstract
Here, we report a copper-catalyzed asymmetric cascade cyclization/[1,2]-Stevens-type rearrangement via a non-diazo approach, leading to the practical and atom-economic assembly of various valuable chiral chromeno[3,4-c]pyrroles bearing a quaternary carbon stereocenter in generally moderate to good yields with wide substrate scope and excellent enantioselectivities (up to 99 % ee). Importantly, this protocol not only represents the first example of catalytic asymmetric [1,2]-Stevens-type rearrangement based on alkynes but also constitutes the first asymmetric formal carbene insertion into the Si-O bond.
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Affiliation(s)
- Feng-Lin Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Chong-Yang Shi
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Pan Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Tong-Yi Zhai
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xin-Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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3
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Jana S, Guo Y, Koenigs RM. Recent Perspectives on Rearrangement Reactions of Ylides via Carbene Transfer Reactions. Chemistry 2021; 27:1270-1281. [PMID: 32754993 PMCID: PMC7894496 DOI: 10.1002/chem.202002556] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/29/2020] [Indexed: 01/24/2023]
Abstract
Among the available methods to increase the molecular complexity, sigmatropic rearrangements occupy a distinct position in organic synthesis. Despite being known for over a century sigmatropic rearrangement reactions of ylides via carbene transfer reaction have only recently come of age. Most of the ylide mediated rearrangement processes involve rupture of a σ-bond and formation of a new bond between π-bond and negatively charged atom followed by simultaneous redistribution of π-electrons. This minireview describes the advances in this research area made in recent years, which now opens up metal-catalyzed enantioselective sigmatropic rearrangement reactions, metal-free photochemical rearrangement reactions and novel reaction pathways that can be accessed via ylide intermediates.
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Affiliation(s)
- Sripati Jana
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Yujing Guo
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Rene M. Koenigs
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
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4
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Declas N, Waser J. Access to Vinyl Ethers and Ketones with Hypervalent Iodine Reagents as Oxy‐Allyl Cation Synthetic Equivalents. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006707] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Nina Declas
- Laboratory of Catalysis and Organic Synthesis Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
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5
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Declas N, Waser J. Access to Vinyl Ethers and Ketones with Hypervalent Iodine Reagents as Oxy-Allyl Cation Synthetic Equivalents. Angew Chem Int Ed Engl 2020; 59:18256-18260. [PMID: 32542955 DOI: 10.1002/anie.202006707] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/08/2020] [Indexed: 12/18/2022]
Abstract
We report an Umpolung strategy of enol ethers to generate oxy-allyl cation equivalents based on the use of hypervalent iodine reagents. Under mild basic conditions, the addition of nucleophiles to aryloxy-substituted vinylbenziodoxolone (VBX) reagents, easily available in two steps from silyl alkynes, resulted in the stereoselective formation of substituted aryl enol ethers. The reaction was most efficient with phenols as nucleophiles, but preliminary results were also achieved for C- and N- nucleophiles. In absence of external nucleophiles, the 2-iodobenzoate group of the reagent was transferred. The obtained aryl enol ethers could then be transformed into α-difunctionalized ketones by oxidation. The described "allyl cation"-like reactivity contrast with the well-established "vinyl-cation" behavior of alkenyl iodonium salts.
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Affiliation(s)
- Nina Declas
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306, 1015, Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306, 1015, Lausanne, Switzerland
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6
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Weissenborn MJ, Koenigs RM. Iron‐porphyrin Catalyzed Carbene Transfer Reactions – an Evolution from Biomimetic Catalysis towards Chemistry‐inspired Non‐natural Reactivities of Enzymes. ChemCatChem 2020. [DOI: 10.1002/cctc.201901565] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Martin J. Weissenborn
- Leibniz Institute of Plant Biochemistry Weinberg 3 Halle 06120 Germany
- Institute of ChemistryMartin-Luther-University Halle-Wittenberg Kurt-Mothes-Str. 2 Halle 06120 Germany
| | - Rene M. Koenigs
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 Aachen 52074 Germany
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7
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Chidley T, Jameel I, Rizwan S, Peixoto PA, Pouységu L, Quideau S, Hopkins WS, Murphy GK. Blue LED Irradiation of Iodonium Ylides Gives Diradical Intermediates for Efficient Metal-free Cyclopropanation with Alkenes. Angew Chem Int Ed Engl 2019; 58:16959-16965. [PMID: 31486231 DOI: 10.1002/anie.201908994] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Indexed: 12/21/2022]
Abstract
A facile and highly chemoselective synthesis of doubly activated cyclopropanes is reported where mixtures of alkenes and β-dicarbonyl-derived iodonium ylides are irradiated with light from blue LEDs. This metal-free synthesis gives cyclopropanes in yields up to 96 %, is operative with cyclic and acyclic ylides, and proceeds with a variety of electronically-diverse alkenes. Computational analysis explains the high selectivity observed, which derives from exclusive HOMO to LUMO excitation, instead of free carbene generation. The procedure is operationally simple, uses no photocatalyst, and provides access in one step to important building blocks for complex molecule synthesis.
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Affiliation(s)
- Tristan Chidley
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Islam Jameel
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Shafa Rizwan
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Philippe A Peixoto
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Laurent Pouységu
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - Stéphane Quideau
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération, 33405, Talence Cedex, France
| | - W Scott Hopkins
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Graham K Murphy
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
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8
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Blue LED Irradiation of Iodonium Ylides Gives Diradical Intermediates for Efficient Metal‐free Cyclopropanation with Alkenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908994] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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9
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Pradhan S, Mishra K, Lee YR. Support-Free Pd 3 Co NCs as an Efficient Heterogeneous Nanocatalyst for New Organic Transformations of C-C Coupling Reactions. Chemistry 2019; 25:10886-10894. [PMID: 31215087 DOI: 10.1002/chem.201901834] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/17/2019] [Indexed: 11/06/2022]
Abstract
A support-free heterogeneous Pd3 Co nanostructured composite (NC), synthesized through a hydrothermal route, acted as an effective catalytic system in multivariate Heck-, Sonogashira-, and Suzuki-type coupling reactions of iodonium ylides. The XPS analysis of the bimetallic Pd3 Co NCs confirmed the elemental composition as 75 % palladium and 25 % cobalt. Furthermore, high-resolution (HR) TEM analysis confirmed the spherical morphology of the Pd3 Co bimetallic nanoparticles. The average diameter of the NCs is 14.8 nm. The coupling reaction proceeded through the generation of α-iodoenones with simultaneous migration of the phenyl group, thereby giving a scaffold with higher atom economy. The heterogeneous Pd3 Co NCs were recycled and reused without any significant change in catalytic ability for up to five reaction cycles. The high concentration of Pd and association of cobalt into the lattice of palladium appears to enhance its catalytic ability for the diverse coupling reactions in comparison with its monometallic counterparts as well as with bimetallic NCs with a comparatively lesser amount of Pd.
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Affiliation(s)
- Samjhana Pradhan
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Korea
| | - Kanchan Mishra
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Korea
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Korea
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10
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Affiliation(s)
- Hua Wu
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN; BCH 5304 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN; BCH 5304 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products; Institute of Chemical Sciences and Engineering; Ecole Polytechnique Fédérale de Lausanne; EPFL-SB-ISIC-LSPN; BCH 5304 1015 Lausanne Switzerland
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11
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Xu G, Chen P, Liu P, Tang S, Zhang X, Sun J. Access to N-Substituted 2-Pyridones by Catalytic Intermolecular Dearomatization and 1,4-Acyl Transfer. Angew Chem Int Ed Engl 2018; 58:1980-1984. [DOI: 10.1002/anie.201812937] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 12/04/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Ping Chen
- Lab of Computational Chemistry and Drug Design; State Key Laboratory of Chemical Oncogeomics; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Pei Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Xinhao Zhang
- Lab of Computational Chemistry and Drug Design; State Key Laboratory of Chemical Oncogeomics; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
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12
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Xu G, Chen P, Liu P, Tang S, Zhang X, Sun J. Access to N-Substituted 2-Pyridones by Catalytic Intermolecular Dearomatization and 1,4-Acyl Transfer. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812937] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Ping Chen
- Lab of Computational Chemistry and Drug Design; State Key Laboratory of Chemical Oncogeomics; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Pei Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
| | - Xinhao Zhang
- Lab of Computational Chemistry and Drug Design; State Key Laboratory of Chemical Oncogeomics; Peking University Shenzhen Graduate School; Shenzhen 518055 China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; School of Petrochemical Engineering; Changzhou University; 1 Gehu Road 213164 Changzhou China
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13
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Lu N, Huang L, Xie L, Cheng J. Transition-Metal-Free Selective Iodoarylation of Pyrazoles via Heterocyclic Aryliodonium Ylides. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800416] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nannan Lu
- State Key Laboratory of Photocatalysis on Energy and Environment; College of Chemistry; Fuzhou University; 350116 Fuzhou P. R. China
| | - Liangsen Huang
- State Key Laboratory of Photocatalysis on Energy and Environment; College of Chemistry; Fuzhou University; 350116 Fuzhou P. R. China
| | - Lili Xie
- State Key Laboratory of Photocatalysis on Energy and Environment; College of Chemistry; Fuzhou University; 350116 Fuzhou P. R. China
| | - Jiajia Cheng
- State Key Laboratory of Photocatalysis on Energy and Environment; College of Chemistry; Fuzhou University; 350116 Fuzhou P. R. China
- State Key Laboratory of Structural Chemistry; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; 350002 Fuzhou Fujian P. R. China
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14
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Xu X, Zhang J, Dong S, Lin L, Lin X, Liu X, Feng X. Nickel(II)‐Catalyzed Asymmetric Propargyl [2,3] Wittig Rearrangement of Oxindole Derivatives: A Chiral Amplification Effect. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804080] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Xi Xu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Jianlin Zhang
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaobin Lin
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin China
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15
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Xu X, Zhang J, Dong S, Lin L, Lin X, Liu X, Feng X. Nickel(II)‐Catalyzed Asymmetric Propargyl [2,3] Wittig Rearrangement of Oxindole Derivatives: A Chiral Amplification Effect. Angew Chem Int Ed Engl 2018; 57:8734-8738. [DOI: 10.1002/anie.201804080] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Xi Xu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Jianlin Zhang
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaobin Lin
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin China
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Carreras J, Caballero A, Pérez PJ. Enantio- and Diastereoselective Cyclopropanation of 1-Alkenylboronates: Synthesis of 1-Boryl-2,3-Disubstituted Cyclopropanes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201710415] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Javier Carreras
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro de Investigación en Química Sostenible and Departamento de Química; Universidad de Huelva; 21007- Huelva Spain
| | - Ana Caballero
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro de Investigación en Química Sostenible and Departamento de Química; Universidad de Huelva; 21007- Huelva Spain
| | - Pedro J. Pérez
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro de Investigación en Química Sostenible and Departamento de Química; Universidad de Huelva; 21007- Huelva Spain
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17
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Carreras J, Caballero A, Pérez PJ. Enantio- and Diastereoselective Cyclopropanation of 1-Alkenylboronates: Synthesis of 1-Boryl-2,3-Disubstituted Cyclopropanes. Angew Chem Int Ed Engl 2018; 57:2334-2338. [DOI: 10.1002/anie.201710415] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Javier Carreras
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro de Investigación en Química Sostenible and Departamento de Química; Universidad de Huelva; 21007- Huelva Spain
| | - Ana Caballero
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro de Investigación en Química Sostenible and Departamento de Química; Universidad de Huelva; 21007- Huelva Spain
| | - Pedro J. Pérez
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro de Investigación en Química Sostenible and Departamento de Química; Universidad de Huelva; 21007- Huelva Spain
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18
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Hock KJ, Koenigs RM. Enantioselective [2,3]-Sigmatropic Rearrangements: Metal-Bound or Free Ylides as Reaction Intermediates? Angew Chem Int Ed Engl 2017; 56:13566-13568. [DOI: 10.1002/anie.201707092] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Katharina J. Hock
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Rene M. Koenigs
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
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19
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Hock KJ, Koenigs RM. Enantioselektive [2,3]-sigmatrope Umlagerungen - metallgebundene oder freie Ylide als Zwischenstufen? Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707092] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Katharina J. Hock
- Institut für Organische Chemie; RWTH Aachen; Landoltweg 1 52074 Aachen Deutschland
| | - Rene M. Koenigs
- Institut für Organische Chemie; RWTH Aachen; Landoltweg 1 52074 Aachen Deutschland
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