1
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Zhao Y, Guo X, Zhang R, Li S, Chen T, Sun X. CF 3CO 2H-Catalyzed Synthesis of 3-Alkynylpyrrole Derivatives and Their Controlled Reduction. J Org Chem 2021; 86:15568-15576. [PMID: 34648289 DOI: 10.1021/acs.joc.1c02078] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A transition-metal-free methodology employing nitroenynes and enaminones has been developed to access 3-alkynylpyrrole derivatives. This mild cyclization reaction might proceed through the nucleophilic addition, intramolecular cyclization, and the subsequent elimination processes. The protocol features a broad substrate scope, good selectivity, and functional group tolerance. Notably, the advantage of this method is also highlighted by the controlled reduction to generate alkenyl- or alkylpyrrole derivatives in good to excellent yields.
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Affiliation(s)
- Yulei Zhao
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xuqiang Guo
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Ruihua Zhang
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Shuai Li
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Tingting Chen
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xuejun Sun
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
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2
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Montesinos-Magraner M, Lluna-Galán C, Cernicharo-Toledo F, Vila C, Blay G, Pedro JR. Enantioselective Friedel-Crafts reaction of hydroxyarenes with nitroenynes to access chiral heterocycles via sequential catalysis. Org Biomol Chem 2021; 19:6990-6994. [PMID: 34350922 DOI: 10.1039/d1ob01238j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Naphthols, hydroxyindoles and an activated phenol are reacted with differently substituted (E)-nitrobut-1-en-3-ynes using the commercially available Rawal's chiral squaramide. The corresponding β-nitroalkynes were obtained with good yields and excellent enantioselectivities. Moreover, dihydronaphthofurans can be accessed via silver catalysed cyclization in a tandem one-pot procedure, with high preservation of the optical purity.
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Affiliation(s)
- Marc Montesinos-Magraner
- Departament de Química Orgànica, Facultat de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain.
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3
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Vila C, Cernicharo‐Toledo F, Blay G, Pedro JR. Nitroenynes as Electrophiles in Organocatalysis and their Application in the Synthesis of Chiral Heterocycles. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Carlos Vila
- Departament de Química Orgànica, Facultat de Química Universitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - Francisco Cernicharo‐Toledo
- Departament de Química Orgànica, Facultat de Química Universitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - Gonzalo Blay
- Departament de Química Orgànica, Facultat de Química Universitat de València Dr. Moliner 50 46100 Burjassot València Spain
| | - José R. Pedro
- Departament de Química Orgànica, Facultat de Química Universitat de València Dr. Moliner 50 46100 Burjassot València Spain
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4
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Petrillo G, Benzi A, Bianchi L, Maccagno M, Pagano A, Tavani C, Spinelli D. Recent advances in the use of conjugated nitro or dinitro-1,3-butadienes as building-blocks for the synthesis of heterocycles. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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5
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Darapaneni CM, Ghosh P, Ghosh T, Maayan G. Unique β‐Turn Peptoid Structures and Their Application as Asymmetric Catalysts. Chemistry 2020; 26:9573-9579. [DOI: 10.1002/chem.202000595] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Indexed: 12/13/2022]
Affiliation(s)
| | - Pritam Ghosh
- Schulich Faculty of ChemistryTechnion-Israel Institute of Technology Haifa 3200008 Israel
| | - Totan Ghosh
- Schulich Faculty of ChemistryTechnion-Israel Institute of Technology Haifa 3200008 Israel
| | - Galia Maayan
- Schulich Faculty of ChemistryTechnion-Israel Institute of Technology Haifa 3200008 Israel
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6
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Ignatiuk ŻA, Janicki MJ, Góra RW, Konieczny K, Kowalczyk R. Applications of Thermal Activation, Ball-milling and Aqueous Medium in Stereoselective Michael Addition of Nitromethane to Enynones Catalyzed by Chiral Squaramides. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801498] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Żaneta A. Ignatiuk
- Department of Organic Chemistry, Faculty of Chemistry; Wrocław University of Science and Technology; Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Mikołaj J. Janicki
- Department of Physical and Quantum Chemistry, Faculty of Chemistry; Wrocław University of Science and Technology; Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Robert W. Góra
- Department of Physical and Quantum Chemistry, Faculty of Chemistry; Wrocław University of Science and Technology; Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Krzysztof Konieczny
- Faculty of Chemistry; Wrocław University of Science and Technology; Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
| | - Rafał Kowalczyk
- Department of Organic Chemistry, Faculty of Chemistry; Wrocław University of Science and Technology; Wybrzeże Wyspiańskiego 27 50-370 Wrocław Poland
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7
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Zhang W, Zhu Y, Zhang L, Luo S. Asymmetric α-Alkylation of β-Ketocarbonyls via Direct Phenacyl Bromide Photolysis by Chiral Primary Amine. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800125] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Wenzhao Zhang
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences; Beijing 100490 China
| | - Yunbo Zhu
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences; Beijing 100490 China
| | - Long Zhang
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences; Beijing 100490 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 China
| | - Sanzhong Luo
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences; Beijing 100490 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 China
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8
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Mandal T, Kuo W, Su M, Bhowmick K, Zhao JCG. Prolinal dithioacetals: Highly efficient organocatalysts for the direct nitro-Michael additions in both organic and aqueous media. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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Kaur J, Chauhan P, Singh S, Chimni SS. Journey Heading towards Enantioselective Synthesis Assisted by Organocatalysis. CHEM REC 2017; 18:137-153. [DOI: 10.1002/tcr.201700020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Indexed: 12/27/2022]
Affiliation(s)
- Jasneet Kaur
- Department of Chemistry, U.G.C. Centre of Advanced Studies in Chemistry; Guru Nanak Dev University; Amritsar India
| | - Pankaj Chauhan
- Institute of Organic Chemistry; RWTH Aachen University, Germany
| | - Sarbjit Singh
- Department of Chemistry; University of Texas at Dallas, USA
| | - Swapandeep Singh Chimni
- Department of Chemistry, U.G.C. Centre of Advanced Studies in Chemistry; Guru Nanak Dev University; Amritsar India
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10
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Liu T, Zhou M, Yuan T, Fu B, Wang X, Peng F, Shao Z. Enantioselective Conjugate Additions of “Difficult” Ketones to Nitrodienynes and Tandem Annulations. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600849] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Teng Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 People's Republic of China
| | - Mingxin Zhou
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 People's Republic of China
| | - Tengrui Yuan
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 People's Republic of China
| | - Binbin Fu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 People's Republic of China
| | - Xinran Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 People's Republic of China
| | - Fangzhi Peng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 People's Republic of China
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 People's Republic of China
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11
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Rogozińska-Szymczak M, Mlynarski J. Unmodified Primary Amine Organocatalysts for Asymmetric Michael Reactions in Aqueous Media. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500913] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Gu X, Guo T, Dai Y, Franchino A, Fei J, Zou C, Dixon DJ, Ye J. Direct Catalytic Asymmetric Doubly Vinylogous Michael Addition of α,β-Unsaturated γ-Butyrolactams to Dienones. Angew Chem Int Ed Engl 2015; 54:10249-53. [PMID: 26184079 PMCID: PMC4678421 DOI: 10.1002/anie.201504276] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Indexed: 11/09/2022]
Abstract
An asymmetric doubly vinylogous Michael addition (DVMA) of α,β-unsaturated γ-butyrolactams to sterically congested β-substituted cyclic dienones with high site-, diastereo-, and enantioselectivity has been achieved. An unprecedented DVMA/vinylogous Michael addition/isomerization cascade reaction affords chiral fused tricyclic γ-lactams with four newly formed stereocenters.
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Affiliation(s)
- Xiaodong Gu
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237 (China)
| | - Tingting Guo
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237 (China)
| | - Yuanyuan Dai
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237 (China)
| | - Allegra Franchino
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA (UK)
| | - Jie Fei
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237 (China)
| | - Chuncheng Zou
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237 (China)
| | - Darren J Dixon
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA (UK).
| | - Jinxing Ye
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237 (China).
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13
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Gu X, Guo T, Dai Y, Franchino A, Fei J, Zou C, Dixon DJ, Ye J. Direct Catalytic Asymmetric Doubly Vinylogous Michael Addition of α,β-Unsaturated γ-Butyrolactams to Dienones. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504276] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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14
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Suljić S, Pietruszka J, Worgull D. Asymmetric Bio- and Organocatalytic Cascade Reaction - Laccase and Secondary Amine-Catalyzed α-Arylation of Aldehydes. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500183] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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15
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Xia AB, Zhao L, Wang T, Zhang YP, Zhong AG, Xu DQ, Xu ZY. Highly enantioselective Michael reaction employing cycloheptanone and cyclooctanone as nucleophiles. NEW J CHEM 2015. [DOI: 10.1039/c4nj01206b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An organocatalytic Michael reaction of cycloheptanone and cyclooctanone with nitrodienes and nitroolefins catalyzed by primary amine catalysts has been accomplished.
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Affiliation(s)
- Ai-Bao Xia
- Catalytic Hydrogenation Research Centre
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou
- China
| | - Long Zhao
- Catalytic Hydrogenation Research Centre
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou
- China
| | - Tao Wang
- Catalytic Hydrogenation Research Centre
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou
- China
| | - Yan-Peng Zhang
- Catalytic Hydrogenation Research Centre
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou
- China
| | - Ai-Guo Zhong
- Department of Pharmaceutical and Chemical Engineering
- Taizhou College
- Linhai Zhejiang
- China
| | - Dan-Qian Xu
- Catalytic Hydrogenation Research Centre
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou
- China
| | - Zhen-Yuan Xu
- Catalytic Hydrogenation Research Centre
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou
- China
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16
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Zhu Y, Qian P, Yang J, Chen S, Hu Y, Wu P, Wang W, Zhang W, Zhang S. Organocatalytic enantioselective Michael addition of cyclic hemiacetals to nitroolefins: a facile access to chiral substituted 5- and 6-membered cyclic ethers. Org Biomol Chem 2015; 13:4769-75. [DOI: 10.1039/c5ob00202h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient aminocatalytic enantioselective Michael addition of readily available cyclic hemiacetals to nitroolefins has been developed.
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Affiliation(s)
- Yadong Zhu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases & Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou 215123
- China
| | - Pengfei Qian
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases & Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou 215123
- China
| | - Jiyang Yang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases & Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou 215123
- China
| | - Shaohua Chen
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases & Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou 215123
- China
| | - Yanwei Hu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases & Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou 215123
- China
| | - Ping Wu
- School of Pharmacy
- Fudan University
- Shanghai 201203
- China
| | - Wei Wang
- Department of Chemistry and Chemical Biology
- University of New Mexico
- Albuquerque
- USA
| | - Wei Zhang
- School of Pharmacy
- Fudan University
- Shanghai 201203
- China
| | - Shilei Zhang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases & Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou 215123
- China
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17
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Zhu Y, Zhang L, Luo S. Asymmetric α-Photoalkylation of β-Ketocarbonyls by Primary Amine Catalysis: Facile Access to Acyclic All-Carbon Quaternary Stereocenters. J Am Chem Soc 2014; 136:14642-5. [DOI: 10.1021/ja508605a] [Citation(s) in RCA: 167] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yunbo Zhu
- Beijing National Laboratory
for Molecule Sciences (BNLMS), CAS Key Laboratory for Molecular Recognition
and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Collaborative Innovation center of Chemical Science and Engineering, Tianjin 300071, China
| | - Long Zhang
- Beijing National Laboratory
for Molecule Sciences (BNLMS), CAS Key Laboratory for Molecular Recognition
and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Collaborative Innovation center of Chemical Science and Engineering, Tianjin 300071, China
| | - Sanzhong Luo
- Beijing National Laboratory
for Molecule Sciences (BNLMS), CAS Key Laboratory for Molecular Recognition
and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Collaborative Innovation center of Chemical Science and Engineering, Tianjin 300071, China
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18
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Desmarchelier A, Coeffard V, Moreau X, Greck C. Asymmetric organocatalytic functionalization of α,α-disubstituted aldehydes through enamine activation. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.01.056] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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19
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Enantioselective Michael additions of aldehydes to nitroalkenes catalyzed with ionically tagged organocatalyst. OPEN CHEM 2014. [DOI: 10.2478/s11532-013-0391-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractEnantioselective organocatalytic Michael additions affords useful building blocks for many biologically and medicinally relevant compounds. Ionically-tagged diphenylprolinol silyl ether efficiently catalyzes several Michael additions of aldehydes to nitroalkenes in ionic liquids. The Michael additions work well in ionic liquids; yields up to 95% and enantioselectivities up to 95% ee were achieved. Furthermore, in some cases, the catalytic system was reusable.
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20
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Dhakal RC, Dieter RK. Regioselective 1,4-Conjugate Addition of Grignard Reagents to Nitrodienes in the Presence of Catalytic Amounts of Zn(II) Salts. Org Lett 2014; 16:1362-5. [DOI: 10.1021/ol500114m] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ramesh C. Dhakal
- Hunter
Laboratory, Department
of Chemistry, Clemson University, Clemson, South Carolina 29634-0973, United States
| | - R. Karl Dieter
- Hunter
Laboratory, Department
of Chemistry, Clemson University, Clemson, South Carolina 29634-0973, United States
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21
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Li X, Peng F, Zhou M, Mo M, Zhao R, Shao Z. Catalytic asymmetric synthesis of 1,3-enyne scaffolds: design and synthesis of conjugated nitro dienynes as novel Michael acceptors and development of a new synthetic methodology. Chem Commun (Camb) 2014; 50:1745-7. [DOI: 10.1039/c3cc48951e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A catalytic enantioselective synthesis of 1,3-enynes for the development of nitro dienynes as novel Michael acceptors has been developed.
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Affiliation(s)
- Xiang Li
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming 650091, China
| | - Fangzhi Peng
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming 650091, China
| | - Mingtao Zhou
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming 650091, China
| | - Mingjie Mo
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming 650091, China
| | - Ruirui Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming 650091, China
| | - Zhihui Shao
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- School of Chemical Science and Technology
- Yunnan University
- Kunming 650091, China
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22
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He Y, Kang TR, Liu QZ, Chen LM, Tu YL, Liu YJ, Chen TB, Wang ZQ, Liu J, Xie YM, Yang JL, He L. One-Pot Synthesis of Optically Enriched 2-Piperidinones from Aliphatic Aldehydes and Cyanoacrylamides. Org Lett 2013; 15:4054-7. [PMID: 23927000 DOI: 10.1021/ol401951g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ying He
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Tai-Ran Kang
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Quan-Zhong Liu
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lian-Mei Chen
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yi-Lian Tu
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ya-Jun Liu
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Tang-Bin Chen
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhi-Qiang Wang
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jie Liu
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yong-Mei Xie
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jin-Liang Yang
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Long He
- Chemical Synthesis and pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637009, China, and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
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23
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Chowdhury R, Ghosh SK. An Organocatalyzed Asymmetric Michael Addition of Cyclic Ketones to 1,3-Diene-1,1-dicarboxylates. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300735] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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24
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Feu KS, Deobald AM, Narayanaperumal S, Corrêa AG, Weber Paixão M. An Eco-Friendly Asymmetric Organocatalytic Conjugate Addition of Malonates to α,β-Unsaturated Aldehydes: Application on the Synthesis of Chiral Indoles. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300431] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Tissot M, Alexakis A. Enantio- and Regioselective Conjugate Addition of Organometallic Reagents to Linear Polyconjugated Nitroolefins. Chemistry 2013; 19:11352-63. [DOI: 10.1002/chem.201300538] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 04/17/2013] [Indexed: 11/10/2022]
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26
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Dell'Amico L, Albrecht Ł, Naicker T, Poulsen PH, Jørgensen KA. Beyond classical reactivity patterns: shifting from 1,4- to 1,6-additions in regio- and enantioselective organocatalyzed vinylogous reactions of olefinic lactones with enals and 2,4-dienals. J Am Chem Soc 2013; 135:8063-70. [PMID: 23654285 DOI: 10.1021/ja4029928] [Citation(s) in RCA: 126] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Organocatalysis is shown to expand the classical reactivity pattern for conjugate addition reactions. It is demonstrated that the site selectivity can be extended from 1,4- to 1,6-additions for the enantioselective vinylogous additions of methyl-substituted vinylogous lactones to enals and 2,4-dienals. This novel reactivity is demonstrated for methyl-substituted olefinic azlactones and butyrolactones. Their synthetic potential is first highlighted by the development of the organocatalytic regioselective vinylogous 1,4-addition to enals which proceeds with a very high level of double-bond geometry control and excellent enantioselectivity. The concept is developed further for the unprecedented intermolecular enantioselective organocatalyzed vinylogous 1,6-addition to linear 2,4-dienals, by which the site selectivity of the process is extended from the β-position to the remote δ-position of the 2,4-dienal. The organocatalyst controls the newly generated stereocenter six bonds away from the stereocenter of the catalyst with a high level of enantiocontrol, and the products are obtained with full control of double-bonds configuration. The scope of these new reaction concepts is demonstrated for a series of aliphatic and aryl-substituted enals and 2,4-dienals undergoing enantioselective vinylogous reactions with methyl-substituted olefinic azlactones and butyrolactones. Furthermore, mechanistic considerations are presented which can account for the change from 1,4- to 1,6-selectivity. Finally, a number of different transformations of the optically active 1,4- and 1,6-addition products are demonstrated.
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Affiliation(s)
- Luca Dell'Amico
- Center for Catalysis, Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
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27
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Kowalczyk R, Nowak AE, Skarżewski J. Organocatalytic asymmetric addition of aliphatic thiols to nitro olefins and nitrodienes. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.03.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Chen J, Geng ZC, Li N, Huang XF, Pan FF, Wang XW. Organocatalytic Asymmetric Michael Addition of Aliphatic Aldehydes to Indolylnitroalkenes: Access to Contiguous Stereogenic Tryptamine Precursors. J Org Chem 2013; 78:2362-72. [DOI: 10.1021/jo3024945] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jian Chen
- Key Laboratory
of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s
Republic of China
| | - Zhi-Cong Geng
- Key Laboratory
of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s
Republic of China
| | - Ning Li
- Key Laboratory
of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s
Republic of China
| | - Xiao-Fei Huang
- Key Laboratory
of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s
Republic of China
| | - Feng-Feng Pan
- Key Laboratory
of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s
Republic of China
| | - Xing-Wang Wang
- Key Laboratory
of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s
Republic of China
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29
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Ballini R, Araújo N, Gil MV, Román E, Serrano JA. Conjugated nitrodienes. Synthesis and reactivity. Chem Rev 2013; 113:3493-515. [PMID: 23308356 DOI: 10.1021/cr2002195] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Roberto Ballini
- School of Science and Technology, Chemistry Division, via S. Agostino 1, I-62032 Camerino, Italy
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30
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Xia AB, Wu C, Xu DQ, Wang YF, Du XH, Li ZB, Xu ZY. Prolinethiol Ether Catalysis in an Asymmetric Michael Reaction: Solvent-Free Synthesis of Functionalized Monohaloalkenes. J Org Chem 2013; 78:1254-9. [DOI: 10.1021/jo302288z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ai-Bao Xia
- State Key
Laboratory Breeding
Base of Green Chemistry−Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014,
People’s Republic of China
| | - Chao Wu
- State Key
Laboratory Breeding
Base of Green Chemistry−Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014,
People’s Republic of China
| | - Dan-Qian Xu
- State Key
Laboratory Breeding
Base of Green Chemistry−Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014,
People’s Republic of China
| | - Yi-Feng Wang
- State Key
Laboratory Breeding
Base of Green Chemistry−Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014,
People’s Republic of China
| | - Xiao-Hua Du
- State Key
Laboratory Breeding
Base of Green Chemistry−Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014,
People’s Republic of China
| | - Zhao-Bo Li
- Hangzhou Minsheng Pharmaceutical Group Co., Ltd., Hangzhou 310014, People’s
Republic of China
| | - Zhen-Yuan Xu
- State Key
Laboratory Breeding
Base of Green Chemistry−Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014,
People’s Republic of China
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31
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Ghosh SK, Qiao Y, Ni B, Headley AD. Asymmetric Michael reactions catalyzed by a highly efficient and recyclable quaternary ammonium ionic liquid-supported organocatalyst in aqueous media. Org Biomol Chem 2013; 11:1801-4. [DOI: 10.1039/c3ob27398a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Creech GS, Kwon O. Synthesis of nitrodienes, nitrostyrenes, and nitrobiaryls through palladium-catalyzed couplings of β-nitrovinyl and o-nitroaryl thioethers. Chem Sci 2013. [DOI: 10.1039/c3sc50773d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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33
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Uraguchi D, Yoshioka K, Ueki Y, Ooi T. Highly Regio-, Diastereo-, and Enantioselective 1,6- and 1,8-Additions of Azlactones to Di- and Trienyl N-Acylpyrroles. J Am Chem Soc 2012; 134:19370-3. [DOI: 10.1021/ja310209g] [Citation(s) in RCA: 142] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daisuke Uraguchi
- Department of Applied Chemistry, Graduate School of
Engineering, Nagoya University, Nagoya
464-8603, Japan
| | - Ken Yoshioka
- Department of Applied Chemistry, Graduate School of
Engineering, Nagoya University, Nagoya
464-8603, Japan
| | - Yusuke Ueki
- Department of Applied Chemistry, Graduate School of
Engineering, Nagoya University, Nagoya
464-8603, Japan
| | - Takashi Ooi
- Department of Applied Chemistry, Graduate School of
Engineering, Nagoya University, Nagoya
464-8603, Japan
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34
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Hong BC, Dange NS, Yen PJ, Lee GH, Liao JH. Organocatalytic Asymmetric Anti-Selective Michael Reactions of Aldehydes and the Sequential Reduction/Lactonization/Pauson–Khand Reaction for the Enantioselective Synthesis of Highly Functionalized Hydropentalenes. Org Lett 2012; 14:5346-9. [DOI: 10.1021/ol302527z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Nitin S. Dange
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Po-Jen Yen
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Gene-Hsiang Lee
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Ju-Hsiou Liao
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
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35
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Tsakos M, Trifonidou M, Kokotos CG. Pyrrolidine-thioxotetrahydropyrimidinone as an efficient organocatalyst for the enantioselective Michael addition of cyclic ketones to nitrodienes. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.078] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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36
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Li X, Li X, Peng F, Shao Z. Mutually Complementary Metal- and Organocatalysis with Collective Synthesis: Asymmetric Conjugate Addition of 1,3-Carbonyl Compounds to Nitroenynes and Further Reactions of the Products. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200226] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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37
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Asymmetric Michael Reaction of Acetaldehyde with Nitroolefins Catalyzed by Highly Water-Compatible Organocatalysts in Aqueous Media. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200215] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Maji B, Ji L, Wang S, Vedachalam S, Ganguly R, Liu XW. N-Heterocyclic Carbene Catalyzed Homoenolate-Addition Reaction of Enals and Nitroalkenes: Asymmetric Synthesis of 5-Carbon-Synthon δ-Nitroesters. Angew Chem Int Ed Engl 2012; 51:8276-80. [DOI: 10.1002/anie.201203449] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Indexed: 12/24/2022]
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39
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Maji B, Ji L, Wang S, Vedachalam S, Ganguly R, Liu XW. N-Heterocyclic Carbene Catalyzed Homoenolate-Addition Reaction of Enals and Nitroalkenes: Asymmetric Synthesis of 5-Carbon-Synthon δ-Nitroesters. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203449] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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40
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Yang H, Banerjee S, Carter RG. Proline sulphonamide-catalysed Yamada-Otani condensation: reaction development, substrate scope and scaffold reactivity. Org Biomol Chem 2012; 10:4851-63. [PMID: 22544220 DOI: 10.1039/c2ob25400j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of a proline sulphonamide-catalysed method for enantioselective and diastereoselective construction of functionalized cyclohexenones is described. Impact of catalyst structure as well as solvent effects and additives are explored. A significant substrate scope is demonstrated by variation of both the aldehyde and the enone components. Diastereoselective derivatization of the cyclohexenone scaffold illustrates its utility as a building block for chemical synthesis.
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Affiliation(s)
- Hua Yang
- College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan 410083, China
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41
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Singh S, Chimni SS. Chiral amine catalyzed enantio- and diastereoselective Michael reaction in brine. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.06.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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42
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Hayashi Y, Okamura D, Umemiya S, Uchimaru T. Organocatalytic 1,4-Addition Reaction of α,β-γ,δ-Diunsaturated Aldehydes versus 1,6-Addition Reaction. ChemCatChem 2012. [DOI: 10.1002/cctc.201200161] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Veverková E, Poláčková V, Liptáková L, Kázmerová E, Mečiarová M, Toma Š, Šebesta R. Organocatalyst Efficiency in the Michael Additions of Aldehydes to Nitroalkenes in Water and in a Ball-Mill. ChemCatChem 2012. [DOI: 10.1002/cctc.201200105] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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44
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45
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Otvös SB, Mándity IM, Fülöp F. Highly efficient 1,4-addition of aldehydes to nitroolefins: organocatalysis in continuous flow by solid-supported peptidic catalysts. CHEMSUSCHEM 2012; 5:266-269. [PMID: 22298413 DOI: 10.1002/cssc.201100332] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 01/06/2012] [Indexed: 05/31/2023]
Affiliation(s)
- Sándor B Otvös
- Institute of Pharmaceutical Chemistry, University of Szeged, Szeged, Hungary
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46
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Ghosh SK, Dhungana K, Headley AD, Ni B. Highly enantioselective and recyclable organocatalytic Michael addition of malonates to α,β-unsaturated aldehydes in aqueous media. Org Biomol Chem 2012; 10:8322-5. [DOI: 10.1039/c2ob26248g] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Yang H, Wong MW. (S)-Proline-catalyzed nitro-Michael reactions: towards a better understanding of the catalytic mechanism and enantioselectivity. Org Biomol Chem 2012; 10:3229-35. [DOI: 10.1039/c2ob06993h] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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48
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Chauhan P, Chimni SS. Facile Construction of Vicinal Quaternary and Tertiary Stereocenters via Regio- and Stereoselective Organocatalytic Michael Addition to Nitrodienes. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100618] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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49
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Chintala P, Ghosh SK, Long E, Headley AD, Ni B. The Application of a Recyclable Organocatalytic System to the Asymmetric Domino Michael/Henry Reaction in Aqueous Media. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100395] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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50
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He T, Wu XY. Enantioselective Organocatalytic Michael Addition of Aliphatic Ketones to Nitrodienes. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911.2010.529227] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Tianxiong He
- a Key Laboratory for Advanced Materials and Institute of Fine Chemicals , East China University of Science and Technology , Shanghai , P. R. China
| | - Xin-Yan Wu
- a Key Laboratory for Advanced Materials and Institute of Fine Chemicals , East China University of Science and Technology , Shanghai , P. R. China
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