1
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Wang J, Xie J, Lee WCC, Wang DS, Zhang XP. Radical differentiation of two ester groups in unsymmetrical diazomalonates for highly asymmetric olefin cyclopropanation. CHEM CATALYSIS 2022; 2:330-344. [PMID: 35494099 PMCID: PMC9049825 DOI: 10.1016/j.checat.2021.11.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Diazomalonates have been demonstrated as effective metalloradicophiles for asymmetric radical olefin cyclopropanation via Co(II)-metalloradical catalysis (MRC). Supported by D 2-symmetric chiral amidoporphyrin ligand, Co(II)-based metalloradical system can efficiently activate unsymmetrical methyl phenyl diazomalonate (MPDM) with effective differentiation of the two ester groups for asymmetric cyclopropanation, enabling stereoselective construction of 1,1-cyclopropanediesters bearing two contiguous chiral centers, including all-carbon quaternary stereogenic center. The Co(II)-catalyzed asymmetric cyclopropanation, which operates at room temperature without slow addition of the diazo compound, is generally applicable to broad-ranging olefins and tolerates various functionalities, providing a streamlined synthesis of chiral 1,1-cyclopropanediesters in high yields with both high diastereoselectivity and enantioselectivity. Combined computational and experimental studies support the underlying stepwise radical mechanism for Co(II)-catalyzed cyclopropanation. In addition to functioning as 1,3-dipoles for forming five-membered structures, enantioenriched (E)-1,1-cyclopropanediesters serve as useful building blocks for stereoselective synthesis of different cyclopropane derivatives. In addition, the enantioenriched (E)-1,1-cyclopropanediesters can be stereoselectively converted to (Z)-diastereomers.
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Affiliation(s)
- Jingyi Wang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467, USA
| | - Jingjing Xie
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467, USA
| | - Wan-Chen Cindy Lee
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467, USA
| | - Duo-Sheng Wang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467, USA
| | - X. Peter Zhang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA 02467, USA
- Lead contact
- Correspondence:
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2
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Roscales S, Csáky AG. Synthesis of Ketones by C−H Functionalization of Aldehydes with Boronic Acids under Transition‐Metal‐Free Conditions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Silvia Roscales
- Instituto Pluridisciplinar Universidad Complutense Campus de Excelencia Internacional Moncloa Paseo de Juan XXIII, 1 28040 Madrid Spain
| | - Aurelio G. Csáky
- Instituto Pluridisciplinar Universidad Complutense Campus de Excelencia Internacional Moncloa Paseo de Juan XXIII, 1 28040 Madrid Spain
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3
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Ghosh K, Das S. Recent advances in ring-opening of donor acceptor cyclopropanes using C-nucleophiles. Org Biomol Chem 2021; 19:965-982. [PMID: 33471020 DOI: 10.1039/d0ob02437f] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Ring-opening transformations of donor-acceptor cyclopropanes (DAC) with carbon-centered nucleophiles is a simple, straight-forward approach to 1,3-bifunctional compounds that has witnessed remarkable progress over the past several years. To date, different reactivity patterns of DACs have been successfully exploited in racemic/stereoselective syntheses of various acyclic compounds or carbocycles with an impressive structural diversity. The thriving strategies have been successfully utilized in multistep synthesis of complex target molecules. Herein, the recent advances (2015-present) in the ring-opening of DAC involving electron rich arenes and indoles, active methylene compounds, various dipolarophiles, organoborates/boronates, vinyl ethers etc. following Friedel-Crafts alkylation, annulation/formal cycloaddition reaction, organocatalytic reaction, Nazarov cyclisation etc. are presented.
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Affiliation(s)
- Koena Ghosh
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700 073, India.
| | - Subhomoy Das
- Department of Chemistry, Bar Ilan University, Ramat Gan 5290002, Israel
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4
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Roscales S, Csáky AG. Synthesis of Ketones by C-H Functionalization of Aldehydes with Boronic Acids under Transition-Metal-Free Conditions. Angew Chem Int Ed Engl 2021; 60:8728-8732. [PMID: 33476411 DOI: 10.1002/anie.202015835] [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: 11/27/2020] [Revised: 12/30/2020] [Indexed: 12/11/2022]
Abstract
A method for the synthesis of ketones from aldehydes and boronic acids via a transition-metal-free C-H functionalization reaction is reported. The method employs nitrosobenzene as a reagent to drive the simultaneous activation of the boronic acid as a boronate and the activation of the C-H bond of the aldehyde as an iminium species that triggers the key C-C bond-forming step via an intramolecular migration from boron to carbon. These findings constitute a practical, scalable, and operationally straightforward method for the synthesis of ketones.
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Affiliation(s)
- Silvia Roscales
- Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa, Paseo de Juan XXIII, 1, 28040, Madrid, Spain
| | - Aurelio G Csáky
- Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa, Paseo de Juan XXIII, 1, 28040, Madrid, Spain
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5
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Wang JF, Meng X, Zhang CH, Yu CM, Mao B. Organocatalytic Enantioselective Conjugate Alkynylation of β-Aminoenones: Access to Chiral β-Alkynyl-β-Amino Carbonyl Derivatives. Org Lett 2020; 22:7427-7432. [PMID: 32966092 DOI: 10.1021/acs.orglett.0c02394] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Readily available potassium alkynyltrifluoroborates were used for organocatalytic asymmetric conjugate alkynylation of β-enaminones. The interception of a modified binaphthol catalyst and in situ generated organodifluoroboranes proved important to access functionalized β-alkynyl-β-amino carbonyls and derivatives with improved chemo-reactivity and enantio-induction. Mechanistic studies revealed the impact of molecular sieves on efficiency and stereocontrol. The products undergo additional functionalization to yield a diverse set of valuable β-alkynyl-β-amino carbonyl scaffolds.
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Affiliation(s)
- Jian-Fei Wang
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Xin Meng
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Chao-Huan Zhang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Chuan-Ming Yu
- College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Bin Mao
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
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6
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He Y, Zhu X, Hu C, Hong G, Wang L. Scandium(III) Trifluoromethanesulfonate Catalyzed Reactions of Donor-Acceptor Cyclopropanes with 1,1-Diarylethylenes. ChemistrySelect 2019. [DOI: 10.1002/slct.201803945] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yuchen He
- Key Laboratory for Advanced Materials; Institute of Fine Chemicals and School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P. R. China
| | - Xiaoyan Zhu
- Key Laboratory for Advanced Materials; Institute of Fine Chemicals and School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P. R. China
| | - Chen Hu
- Key Laboratory for Advanced Materials; Institute of Fine Chemicals and School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P. R. China
| | - Gang Hong
- Key Laboratory for Advanced Materials; Institute of Fine Chemicals and School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P. R. China
| | - Limin Wang
- Key Laboratory for Advanced Materials; Institute of Fine Chemicals and School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P. R. China
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7
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Roscales S, Ortega V, Csákÿ AG. Selective Functionalization of Achmatowicz Rearrangement Products by Reactions with Potassium Organotrifluoroborates under Transition-Metal-Free Conditions. J Org Chem 2018; 83:11425-11436. [PMID: 30036474 DOI: 10.1021/acs.joc.8b01643] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The repertoire of synthetic transformations of the products of the Achmatowicz rearrangement has been expanded by exploring their reactivity with potassium organotrifluoroborates in the absence of transition metals. Depending on the reaction conditions and the substitution pattern of the starting material, the reaction may lead to the stereoselective synthesis of dihydropyranones (2,6- trans), tetrahydropyranones (2,3- cis-2,6- cis) or functionalized 1,4-dicarbonyl compounds. The method has also been adapted for the one-pot synthesis of functionalized pyrroles.
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Affiliation(s)
- Silvia Roscales
- Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa , Paseo de Juan XXIII, 1 , 28040 Madrid , Spain
| | - Víctor Ortega
- Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa , Paseo de Juan XXIII, 1 , 28040 Madrid , Spain
| | - Aurelio G Csákÿ
- Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa , Paseo de Juan XXIII, 1 , 28040 Madrid , Spain
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8
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Richmond E, Vuković VD, Moran J. Nucleophilic Ring Opening of Donor-Acceptor Cyclopropanes Catalyzed by a Brønsted Acid in Hexafluoroisopropanol. Org Lett 2018; 20:574-577. [PMID: 29345947 DOI: 10.1021/acs.orglett.7b03688] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A general, Brønsted acid catalyzed method for the room temperature, nucleophilic ring opening of donor-acceptor cyclopropanes in fluorinated alcohol solvent, HFIP, is described. Salient features of this method include an expanded cyclopropane scope, including those bearing single keto-acceptor groups and those bearing electron-deficient aryl groups. Notably, the catalytic system proved amenable to a wide range of nucleophiles including arenes, indoles, azides, diketones, and alcohols.
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Affiliation(s)
- Edward Richmond
- University of Strasbourg, CNRS, ISIS UMR 7006 , 67000 Strasbourg, France
| | - Vuk D Vuković
- University of Strasbourg, CNRS, ISIS UMR 7006 , 67000 Strasbourg, France
| | - Joseph Moran
- University of Strasbourg, CNRS, ISIS UMR 7006 , 67000 Strasbourg, France
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9
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Nguyen TN, May JA. Tertiary and Quaternary Carbon Formation via Gallium-Catalyzed Nucleophilic Addition of Organoboronates to Cyclopropanes. Org Lett 2017; 20:112-115. [DOI: 10.1021/acs.orglett.7b03349] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Truong N. Nguyen
- Department of Chemistry, University of Houston, 3585 Cullen Blvd, Fleming Building Rm 112, Houston, Texas 77204-5003, United States
| | - Jeremy A. May
- Department of Chemistry, University of Houston, 3585 Cullen Blvd, Fleming Building Rm 112, Houston, Texas 77204-5003, United States
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10
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Ortega V, Del Castillo E, Csákÿ AG. Transition-Metal-Free Stereocomplementary Cross-Coupling of Diols with Boronic Acids as Nucleophiles. Org Lett 2017; 19:6236-6239. [PMID: 29112447 DOI: 10.1021/acs.orglett.7b03192] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The transition-metal-free diastereoselective C(sp2)-C(sp3) cross-coupling between unprotected diols and boronic acids or potassium organotrifluoroborates is reported. Depending on the reaction conditions, the syn or the anti reaction products are obtained in a stereocomplementary fashion. This type of coupling is developed with alkenyl-, heteroaryl- and arylboron compounds as carbon nucleophiles.
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Affiliation(s)
- Víctor Ortega
- Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa , Paseo de Juan XXIII, 1, 28040 Madrid, Spain
| | - Estefanía Del Castillo
- Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa , Paseo de Juan XXIII, 1, 28040 Madrid, Spain
| | - Aurelio G Csákÿ
- Instituto Pluridisciplinar, Universidad Complutense, Campus de Excelencia Internacional Moncloa , Paseo de Juan XXIII, 1, 28040 Madrid, Spain
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11
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Das S, Daniliuc CG, Studer A. Stereospecific 1,3-Aminobromination of Donor-Acceptor Cyclopropanes. Angew Chem Int Ed Engl 2017; 56:11554-11558. [DOI: 10.1002/anie.201704092] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Saikat Das
- NRW Graduate School of Chemistry; Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
| | - Constantin G. Daniliuc
- NRW Graduate School of Chemistry; Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
| | - Armido Studer
- NRW Graduate School of Chemistry; Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
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12
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Das S, Daniliuc CG, Studer A. Stereospecific 1,3-Aminobromination of Donor-Acceptor Cyclopropanes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704092] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Saikat Das
- NRW Graduate School of Chemistry; Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
| | - Constantin G. Daniliuc
- NRW Graduate School of Chemistry; Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
| | - Armido Studer
- NRW Graduate School of Chemistry; Organisch-Chemisches Institut; Westfälische Wilhelms-Universität; Corrensstrasse 40 48149 Münster Germany
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13
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Sone Y, Kimura Y, Ota R, Mochizuki T, Ito J, Nishii Y. Catalytic Hydrogenolysis of Enantioenriched Donor-Acceptor Cyclopropanes Using H2
and Palladium on Charcoal. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700345] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yoshitomo Sone
- Department of Applied Chemistry; Faculty of Textile Science and Technology; Shinshu University; Tokida 3-25-1, Ueda 386-8567 Nagano Japan
| | - Yumi Kimura
- Department of Applied Chemistry; Faculty of Textile Science and Technology; Shinshu University; Tokida 3-25-1, Ueda 386-8567 Nagano Japan
| | - Ryotaro Ota
- Department of Applied Chemistry; Faculty of Textile Science and Technology; Shinshu University; Tokida 3-25-1, Ueda 386-8567 Nagano Japan
| | - Takehito Mochizuki
- Department of Applied Chemistry; Faculty of Textile Science and Technology; Shinshu University; Tokida 3-25-1, Ueda 386-8567 Nagano Japan
| | - Junki Ito
- Department of Applied Chemistry; Faculty of Textile Science and Technology; Shinshu University; Tokida 3-25-1, Ueda 386-8567 Nagano Japan
| | - Yoshinori Nishii
- Department of Applied Chemistry; Faculty of Textile Science and Technology; Shinshu University; Tokida 3-25-1, Ueda 386-8567 Nagano Japan
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14
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Zhu X, Hong G, Hu C, Wu S, Wang L. Scandium(III) Trifluoromethanesulfonate Catalyzed Selective Reactions of Donor-Acceptor Cyclopropanes with 1,1-Diphenylethanols: An Approach to Polysubstituted Olefins. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700221] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaoyan Zhu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; 130 Meilong Road 200237 Shanghai P. R. China
| | - Gang Hong
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; 130 Meilong Road 200237 Shanghai P. R. China
| | - Chen Hu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; 130 Meilong Road 200237 Shanghai P. R. China
| | - Shengying Wu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; 130 Meilong Road 200237 Shanghai P. R. China
| | - Limin Wang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; 130 Meilong Road 200237 Shanghai P. R. China
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15
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Hayakawa K, Matsuoka SI, Suzuki M. Ring-opening polymerization of donor–acceptor cyclopropanes catalyzed by Lewis acids. Polym Chem 2017. [DOI: 10.1039/c7py00794a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Ring-opening polymerization of a variety of cyclopropane derivatives catalyzed by Lewis acids has been investigated.
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Affiliation(s)
- Kosuke Hayakawa
- Department of Life Science and Applied Chemistry
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya
- Japan
| | - Shin-ichi Matsuoka
- Department of Life Science and Applied Chemistry
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya
- Japan
| | - Masato Suzuki
- Department of Life Science and Applied Chemistry
- Graduate School of Engineering
- Nagoya Institute of Technology
- Nagoya
- Japan
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16
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Das S, Daniliuc CG, Studer A. Multicomponent 1,3-Bifunctionalization of Donor–Acceptor Cyclopropanes with Arenes and Nitrosoarenes. Org Lett 2016; 18:5576-5579. [DOI: 10.1021/acs.orglett.6b02815] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Saikat Das
- NRW
Graduate School of Chemistry and ‡Organisch-Chemisches Institut, Westfalische Wilhelms-Universität, Corrensstraβe 40, 48149 Münster, Germany
| | - Constantin G. Daniliuc
- NRW
Graduate School of Chemistry and ‡Organisch-Chemisches Institut, Westfalische Wilhelms-Universität, Corrensstraβe 40, 48149 Münster, Germany
| | - Armido Studer
- NRW
Graduate School of Chemistry and ‡Organisch-Chemisches Institut, Westfalische Wilhelms-Universität, Corrensstraβe 40, 48149 Münster, Germany
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17
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Gopalakrishnan B, Mohan S, Parella R, Babu SA. Diastereoselective Pd(II)-Catalyzed sp3 C–H Arylation Followed by Ring Opening of Cyclopropanecarboxamides: Construction of anti β-Acyloxy Carboxamide Derivatives. J Org Chem 2016; 81:8988-9005. [DOI: 10.1021/acs.joc.6b01635] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Bojan Gopalakrishnan
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli
P.O., Sector 81, SAS Nagar, Mohali, Knowledge
City, Punjab 140306, India
| | - Sruthi Mohan
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli
P.O., Sector 81, SAS Nagar, Mohali, Knowledge
City, Punjab 140306, India
| | - Ramarao Parella
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli
P.O., Sector 81, SAS Nagar, Mohali, Knowledge
City, Punjab 140306, India
| | - Srinivasarao Arulananda Babu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli
P.O., Sector 81, SAS Nagar, Mohali, Knowledge
City, Punjab 140306, India
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18
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Sasaki M, Kondo Y, Nishio T, Takeda K. Carbanion-Induced [3 + 2] Annulation of Donor–Acceptor Cyclopropanes. Org Lett 2016; 18:3858-61. [DOI: 10.1021/acs.orglett.6b01865] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Michiko Sasaki
- Department of Synthetic Organic Chemistry, Institute of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - Yasuhiro Kondo
- Department of Synthetic Organic Chemistry, Institute of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - Takuya Nishio
- Department of Synthetic Organic Chemistry, Institute of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - Kei Takeda
- Department of Synthetic Organic Chemistry, Institute of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
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19
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Nguyen TN, Nguyen TS, May JA. Brønsted Acid Catalyzed Homoconjugate Addition of Organotrifluoroborates to Arylated Cyclopropyl Ketones. Org Lett 2016; 18:3786-9. [DOI: 10.1021/acs.orglett.6b01795] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Truong N. Nguyen
- Department
of Chemistry, University of Houston, 3585 Cullen Boulevard, Fleming Building
Room 112, Houston, Texas 77204-5003, United States
| | - Thien S. Nguyen
- Department
of Chemistry, University of Houston, 3585 Cullen Boulevard, Fleming Building
Room 112, Houston, Texas 77204-5003, United States
| | - Jeremy A. May
- Department
of Chemistry, University of Houston, 3585 Cullen Boulevard, Fleming Building
Room 112, Houston, Texas 77204-5003, United States
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20
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Xia Y, Lin L, Chang F, Liao Y, Liu X, Feng X. Asymmetric Ring Opening/Cyclization/Retro-Mannich Reaction of Cyclopropyl Ketones with Aryl 1,2-Diamines for the Synthesis of Benzimidazole Derivatives. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604735] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yong Xia
- 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
| | - Fenzhen Chang
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Yuting Liao
- 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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21
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Xia Y, Lin L, Chang F, Liao Y, Liu X, Feng X. Asymmetric Ring Opening/Cyclization/Retro-Mannich Reaction of Cyclopropyl Ketones with Aryl 1,2-Diamines for the Synthesis of Benzimidazole Derivatives. Angew Chem Int Ed Engl 2016; 55:12228-32. [DOI: 10.1002/anie.201604735] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Yong Xia
- 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
| | - Fenzhen Chang
- Key Laboratory of Green Chemistry & Technology; Ministry of Education; College of Chemistry; Sichuan University; Chengdu 610064 China
| | - Yuting Liao
- 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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