51
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Urban M, Franc M, Hofmanová M, Císařová I, Veselý J. The enantioselective addition of 1-fluoro-1-nitro(phenylsulfonyl)methane to isatin-derived ketimines. Org Biomol Chem 2018; 15:9071-9076. [PMID: 29083001 DOI: 10.1039/c7ob02408h] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An asymmetric organocatalytic addition of fluorinated phenylsulfonylnitromethane to isatin-derived ketimines was developed. The reaction was efficiently catalyzed by a chiral tertiary amine, cinchonine. This methodology provides a new type of optically active compound with two adjacent quaternary carbon stereocenters in good yield (up to 96%), with moderate diastereoselectivity (up to 5.7 : 1 dr) and excellent enantioselectivity (up to 98/96% ee).
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Affiliation(s)
- M Urban
- Department of Organic Chemistry, Charles University, Hlavova 8, 12843 Prague, Czech Republic.
| | - M Franc
- Department of Organic Chemistry, Charles University, Hlavova 8, 12843 Prague, Czech Republic.
| | - M Hofmanová
- Department of Organic Chemistry, Charles University, Hlavova 8, 12843 Prague, Czech Republic.
| | - I Císařová
- Department of Inorganic Chemistry, Charles University, Hlavova 8, 12843 Prague, Czech Republic
| | - J Veselý
- Department of Organic Chemistry, Charles University, Hlavova 8, 12843 Prague, Czech Republic.
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52
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Shikora JM, Chemler SR. Synthesis of Benzyl Amines via Copper-Catalyzed Enantioselective Aza-Friedel-Crafts Addition of Phenols to N-Sulfonyl Aldimines. Org Lett 2018; 20:2133-2137. [PMID: 29589946 DOI: 10.1021/acs.orglett.8b00282] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A new copper-catalyzed enantioselective aza-Freidel-Crafts reaction between phenols and N-sulfonyl aldimines that provides chiral secondary benzylamines in good to excellent yields and excellent enantioselectivities (up to 99% ee) is disclosed. In particular, excellent scope with alkylimines was observed for the first time. The synthetic utility of the products was demonstrated in the first enantioselective synthesis of a dual orexin receptor antagonist, a compound that contains an amine-bearing stereocenter adjacent to a bis- ortho-functionalized arene.
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Affiliation(s)
- Jonathan M Shikora
- Chemistry Department, Natural Science Complex , State University of New York at Buffalo , Buffalo , New York 14260 , United States
| | - Sherry R Chemler
- Chemistry Department, Natural Science Complex , State University of New York at Buffalo , Buffalo , New York 14260 , United States
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53
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Yang ZT, Yang WL, Chen L, Sun H, Deng WP. Organocatalytic Enantioselective aza-Friedel-Crafts Reactions of Pyrazolinone Ketimines with Hydroxyindoles and Electron-Rich Phenols. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800181] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Zhong-Tao Yang
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Wu-Lin Yang
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Long Chen
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Hao Sun
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Wei-Ping Deng
- Shanghai Key Laboratory of New Drug Design and School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
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54
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Wang L, Rahman A, Lin X. Enantioselective synthesis of cyclic quaternary α-amino acid derivatives by chiral phosphoric acid catalysis. Org Biomol Chem 2018; 15:6033-6041. [PMID: 28681891 DOI: 10.1039/c7ob01149k] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A highly enantioselective aza-Friedel-Crafts reaction of N-sulfonyl cyclic ketimines with indoles catalyzed by chiral phosphoric acids has been developed. This methodology provides an efficient and facile route to indole-containing chiral cyclic α-amino acid derivatives bearing a quaternary stereocenter in high yields and up to 98% enantioselectivity.
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Affiliation(s)
- Lei Wang
- Laboratory of Asymmetric Catalysis and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
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55
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Mohammadi Ziarani G, Moradi R, Lashgari N. Asymmetric synthesis of chiral oxindoles using isatin as starting material. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.01.025] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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56
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Giardinetti M, Marrot J, Greck C, Moreau X, Coeffard V. Aminocatalyzed Synthesis of Enantioenriched Phenalene Skeletons through a Friedel–Crafts/Cyclization Strategy. J Org Chem 2018; 83:1019-1025. [PMID: 29261307 DOI: 10.1021/acs.joc.7b02629] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maxime Giardinetti
- Institut
Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, Versailles 78035 Cedex, France
| | - Jérôme Marrot
- Institut
Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, Versailles 78035 Cedex, France
| | - Christine Greck
- Institut
Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, Versailles 78035 Cedex, France
| | - Xavier Moreau
- Institut
Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, Versailles 78035 Cedex, France
| | - Vincent Coeffard
- Institut
Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles-St-Quentin-en-Yvelines, 45 Avenue des États-Unis, Versailles 78035 Cedex, France
- Université de Nantes, CNRS, CEISAM, UMR 6230, Faculté
des Sciences et des Techniques, 2 rue de la Houssinière, BP 92208, Nantes 44322 Cedex 3, France
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57
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Cao SX, Wang JX, He ZJ. Magnetic nanoparticles supported cinchona alkaloids for asymmetric Michael addition reaction of 1,3-dicarbonyls and maleimides. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.06.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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58
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Zhu JY, Yang WL, Liu YZ, Shang SJ, Deng WP. A copper(i)-catalyzed asymmetric Mannich reaction of glycine Schiff bases with isatin-derived ketimines: enantioselective synthesis of 3-substituted 3-aminooxindoles. Org Chem Front 2018. [DOI: 10.1039/c7qo00691h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We have developed a copper/Ph-Phosferrox-catalyzed asymmetric Mannich reaction of Schiff bases with isatin-derived ketimines to prepare 3-substituted 3-aminooxindoles with excellent results.
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Affiliation(s)
- Jing-Yan Zhu
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Wu-Lin Yang
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Yang-Zi Liu
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Shao-Jing Shang
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key Laboratory of New Drug Design
- East China University of Science and Technology
- Shanghai 200237
- P. R. China
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59
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Kaur J, Chimni SS. Catalytic synthesis of 3-aminooxindoles via addition to isatin imine: an update. Org Biomol Chem 2018; 16:3328-3347. [DOI: 10.1039/c7ob03002a] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
3-Substituted-3-aminooxindoles have attracted the attention of organic chemist to develop different synthetic methodologies for their synthesis using catalysts. This review covers the recent developments.
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Affiliation(s)
- Jasneet Kaur
- Department of Chemistry
- U.G.C. Centre of Advance Study-II
- Guru Nanak Dev University
- Amritsar
- India
| | - Swapandeep Singh Chimni
- Department of Chemistry
- U.G.C. Centre of Advance Study-II
- Guru Nanak Dev University
- Amritsar
- India
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60
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Liu Y, Wang J, Wei Z, Cao J, Liang D, Lin Y, Duan H. Diastereo- and enantioselective nitro-Mannich reaction of isatin-derived N-Boc ketimines catalyzed by chiral phase-transfer catalysts. NEW J CHEM 2018. [DOI: 10.1039/c7nj04527a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A series of 3-substituted 3-amino-oxindoles were constructed in excellent yields (96–99%) with high enantioselectivities (up to 95% ee) and diastereoselectivities (up to 95 : 5 dr) catalyzed by Cinchona alkaloid-derived phase-transfer catalysts.
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Affiliation(s)
- Yuxin Liu
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
| | - Jingdong Wang
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
| | - Zhonglin Wei
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
| | - Jungang Cao
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
| | - Dapeng Liang
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
| | - Yingjie Lin
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
| | - Haifeng Duan
- Department of Organic Chemistry, College of Chemistry, Jilin University
- Changchun 130012
- China
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61
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Huang Q, Cheng Y, Yuan H, Chang X, Li P, Li W. Organocatalytic enantioselective Mannich-type addition of 5H-thiazol-4-ones to isatin-derived imines: access to 3-substituted 3-amino-2-oxindoles featured by vicinal sulfur-containing tetrasubstituted stereocenters. Org Chem Front 2018. [DOI: 10.1039/c8qo00814k] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
3-Substituted 3-amino-2-oxindoles featuring both 5H-thiazol-4-one and vicinal sulfur-containing tetrasubstituted stereocenter structural motifs were obtained in high yields with excellent enantioselectivities and diastereoselectivities.
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Affiliation(s)
- Qiuhong Huang
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Yuyu Cheng
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- China
| | - Huijun Yuan
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
| | - Xiaoyong Chang
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- China
| | - Pengfei Li
- Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- China
| | - Wenjun Li
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao
- China
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62
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Nakamura S, Furukawa T, Hatanaka T, Funahashi Y. Enantioselective aza-Friedel–Crafts reaction of cyclic ketimines with indoles using chiral imidazoline–phosphoric acid catalysts. Chem Commun (Camb) 2018; 54:3811-3814. [DOI: 10.1039/c8cc00594j] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A highly enantioselective aza-Friedel Crafts reaction of cyclic 4-aryl-3-oxo-1,2,5-thiadiazol-1,1-oxides as cyclic ketimines with indoles was developed.
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Affiliation(s)
- Shuichi Nakamura
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology
- Showa-ku
- Japan
- Frontier Research Institute for Material Science, Nagoya Institute of Technology
- Showa-ku
| | - Takashi Furukawa
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology
- Showa-ku
- Japan
| | - Tsubasa Hatanaka
- Department of Chemistry, Graduate School of Science, Osaka University
- Toyonaka
- Japan
| | - Yasuhiro Funahashi
- Department of Chemistry, Graduate School of Science, Osaka University
- Toyonaka
- Japan
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63
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Vila C, Rendón-Patiño A, Montesinos-Magraner M, Blay G, Muñoz MC, Pedro JR. Organocatalytic Enantioselective Functionalization of Hydroxyquinolines through an Aza-Friedel-Crafts Alkylation with Isatin-derived Ketimines. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701217] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Carlos Vila
- Departament de Química Orgànica, Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - Alejandra Rendón-Patiño
- Departament de Química Orgànica, Facultat de Química; Universitat de València; Dr. Moliner 50 46100 Burjassot València Spain
| | - Marc Montesinos-Magraner
- 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
| | - M. Carmen Muñoz
- Departament de Física Aplicada; Universitat Politècnica de València; Camino de Vera s/n 46022 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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64
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Xiao M, Xu D, Liang W, Wu W, Chan ASC, Zhao J. Organocatalytic Enantioselective Friedel-Crafts Alkylation/Lactonization Reaction of Hydroxyindoles with Methyleneoxindoles. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701089] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mengjie Xiao
- Guangzhou Institutes of Biomedicine and Health; Chinese Academy of Sciences; Guangzhou 510530 Peoples Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Dengfeng Xu
- Guangzhou Institutes of Biomedicine and Health; Chinese Academy of Sciences; Guangzhou 510530 Peoples Republic of China
| | - Weihong Liang
- Guangzhou Institutes of Biomedicine and Health; Chinese Academy of Sciences; Guangzhou 510530 Peoples Republic of China
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Wenyu Wu
- University of Chinese Academy of Sciences; Beijing 100049 People's Republic of China
| | - Albert S. C. Chan
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| | - Junling Zhao
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
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65
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Yang MC, Peng C, Huang H, Yang L, He XH, Huang W, Cui HL, He G, Han B. Organocatalytic Asymmetric Synthesis of Spiro-oxindole Piperidine Derivatives That Reduce Cancer Cell Proliferation by Inhibiting MDM2–p53 Interaction. Org Lett 2017; 19:6752-6755. [PMID: 29210587 DOI: 10.1021/acs.orglett.7b03516] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ming-Cheng Yang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Cheng Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Hua Huang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Lei Yang
- State Key Laboratory of Biotherapy, West
China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiang-Hong He
- State Key Laboratory of Biotherapy, West
China Hospital, Sichuan University, Chengdu 610041, China
| | - Wei Huang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Gu He
- State Key Laboratory of Biotherapy, West
China Hospital, Sichuan University, Chengdu 610041, China
| | - Bo Han
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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66
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Kaya U, Chauhan P, Mahajan S, Deckers K, Valkonen A, Rissanen K, Enders D. Squaramide-Catalyzed Asymmetric aza-Friedel-Crafts/N,O-Acetalization Domino Reactions Between 2-Naphthols and Pyrazolinone Ketimines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709224] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Uğur Kaya
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Pankaj Chauhan
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Suruchi Mahajan
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Kristina Deckers
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Arto Valkonen
- Department of Chemistry, Nanoscience Center; University of Jyvaskyla; 40014 JYU Finland
| | - Kari Rissanen
- Department of Chemistry, Nanoscience Center; University of Jyvaskyla; 40014 JYU Finland
| | - Dieter Enders
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
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67
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Kaya U, Chauhan P, Mahajan S, Deckers K, Valkonen A, Rissanen K, Enders D. Squaramide-Catalyzed Asymmetric aza-Friedel-Crafts/N,O-Acetalization Domino Reactions Between 2-Naphthols and Pyrazolinone Ketimines. Angew Chem Int Ed Engl 2017; 56:15358-15362. [DOI: 10.1002/anie.201709224] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Uğur Kaya
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Pankaj Chauhan
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Suruchi Mahajan
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Kristina Deckers
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Arto Valkonen
- Department of Chemistry, Nanoscience Center; University of Jyvaskyla; 40014 JYU Finland
| | - Kari Rissanen
- Department of Chemistry, Nanoscience Center; University of Jyvaskyla; 40014 JYU Finland
| | - Dieter Enders
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
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68
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Takizawa S, Sako M, Abozeid MA, Kishi K, Wathsala HDP, Hirata S, Murai K, Fujioka H, Sasai H. Enantio- and Diastereoselective Betti/aza-Michael Sequence: Single Operated Preparation of Chiral 1,3-Disubstituted Isoindolines. Org Lett 2017; 19:5426-5429. [DOI: 10.1021/acs.orglett.7b02693] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Shinobu Takizawa
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1
Mihogaoka, Ibaraki-shi, Osaka 567-0047, Japan
| | - Makoto Sako
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1
Mihogaoka, Ibaraki-shi, Osaka 567-0047, Japan
| | - Mohamed Ahmed Abozeid
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1
Mihogaoka, Ibaraki-shi, Osaka 567-0047, Japan
| | - Kenta Kishi
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1
Mihogaoka, Ibaraki-shi, Osaka 567-0047, Japan
| | - H. D. P. Wathsala
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1
Mihogaoka, Ibaraki-shi, Osaka 567-0047, Japan
| | - Shuichi Hirata
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1
Mihogaoka, Ibaraki-shi, Osaka 567-0047, Japan
| | - Kenichi Murai
- Graduate
School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita-shi, Osaka 565-0871, Japan
| | - Hiromichi Fujioka
- Graduate
School of Pharmaceutical Sciences, Osaka University, 1-6 Yamada-oka, Suita-shi, Osaka 565-0871, Japan
| | - Hiroaki Sasai
- The
Institute of Scientific and Industrial Research, Osaka University, 8-1
Mihogaoka, Ibaraki-shi, Osaka 567-0047, Japan
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69
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Dai J, Xiong D, Yuan T, Liu J, Chen T, Shao Z. Chiral Primary Amine Catalysis for Asymmetric Mannich Reactions of Aldehydes with Ketimines: Stereoselectivity and Reactivity. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706304] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jun Dai
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education, School of Chemical Science and Technology Yunnan University Kunming 650091 China
| | - Dan Xiong
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education, School of Chemical Science and Technology Yunnan University Kunming 650091 China
| | - Tengrui Yuan
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education, School of Chemical Science and Technology Yunnan University Kunming 650091 China
| | - Juan Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education, School of Chemical Science and Technology Yunnan University Kunming 650091 China
| | - Tao Chen
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education, School of Chemical Science and Technology Yunnan University Kunming 650091 China
| | - Zhihui Shao
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan 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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70
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Dai J, Xiong D, Yuan T, Liu J, Chen T, Shao Z. Chiral Primary Amine Catalysis for Asymmetric Mannich Reactions of Aldehydes with Ketimines: Stereoselectivity and Reactivity. Angew Chem Int Ed Engl 2017; 56:12697-12701. [PMID: 28786162 DOI: 10.1002/anie.201706304] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 07/17/2017] [Indexed: 01/01/2023]
Abstract
The application potential of primary amine catalysts in the context of Mannich reactions of aldehydes with ketimines is exemplified by isatin-derived ketimines and cyclic trifluoromethyl ketimines. Primary amine catalysts exhibit either unusual stereoselectivity or reactivity, which is not observable with secondary amine catalysts. Moreover, reversal of diastereofacial selectivity between primary and secondary amine catalysts is disclosed. These new reactions provide useful methods for the syntheses of chiral 3-substituted 3-amino-2-oxindoles and dihydroquinazolinones bearing a trifluoromethylated quaternary stereocenter. The synthetic utility of the reactions is demonstrated through the formal synthesis of AG-041R and DPC 083 and the total synthesis of (-)-psychotriasine.
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Affiliation(s)
- Jun Dai
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Dan Xiong
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Tengrui Yuan
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Juan Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Tao Chen
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Zhihui Shao
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, 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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71
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Hajra S, Jana B. Quinine-Based Trifunctional Organocatalyst for Tandem Aza-Henry Reaction-Cyclization: Asymmetric Synthesis of Spiroxindole-Pyrrolidine/Piperidines. Org Lett 2017; 19:4778-4781. [PMID: 28849657 DOI: 10.1021/acs.orglett.7b02150] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A quinine-derived trifunctional sulphonamide catalyst has been developed for the effective asymmetric organocatalytic tandem aza-Henry reaction-cyclization of isatin-derived ketimines and nitroalkane-mesylates for the synthesis of spiro-pyrrolidine/piperidine-oxindoles. Demethylation of traditional bifunctional catalyst to incorporate an additional hydrogen bonding C6'-OH group plays the key role toward remarkable enantioselectivity.
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Affiliation(s)
- Saumen Hajra
- Centre of Biomedical Research (CBMR), Sanjay Gandhi Postgraduate Institute of Medical Sciences Campus , Raebareli Road, Lucknow 226014, UP, India
| | - Bibekananda Jana
- Centre of Biomedical Research (CBMR), Sanjay Gandhi Postgraduate Institute of Medical Sciences Campus , Raebareli Road, Lucknow 226014, UP, India.,Department of Chemistry, Indian Institute of Technology Kharagpur (IIT Kharagpur) , Kharagpur 721302, WB, India
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72
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Arai T, Tosaka T, Kuwano S. Catalytic Asymmetric Mannich Reaction of Isatin-derivedN-Boc Imines with Malononitrile by Bis(imidazolidine)-derived Pincer Rh Complex. ChemistrySelect 2017. [DOI: 10.1002/slct.201701444] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Takayoshi Arai
- Soft Molecular Activation Research Center (SMARC); Molecular Chirality Research Center (MCRC), and Department of Chemistry; Graduate School of Science; Chiba University, 1-33 Yayoi, Inage; Chiba 263-8522 Japan
| | - Takuya Tosaka
- Soft Molecular Activation Research Center (SMARC); Molecular Chirality Research Center (MCRC), and Department of Chemistry; Graduate School of Science; Chiba University, 1-33 Yayoi, Inage; Chiba 263-8522 Japan
| | - Satoru Kuwano
- Soft Molecular Activation Research Center (SMARC); Molecular Chirality Research Center (MCRC), and Department of Chemistry; Graduate School of Science; Chiba University, 1-33 Yayoi, Inage; Chiba 263-8522 Japan
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73
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Aranzamendi E, Sotomayor N, Lete E. Phenolic Activation in Chiral Brønsted Acid-Catalyzed Intramolecular α-Amidoalkylation Reactions for the Synthesis of Fused Isoquinolines. ACS OMEGA 2017; 2:2706-2718. [PMID: 31457610 PMCID: PMC6641169 DOI: 10.1021/acsomega.7b00170] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 06/05/2017] [Indexed: 05/07/2023]
Abstract
An organolithium addition-intramolecular α-amidoalkylation sequence on N-phenethylimides has been developed for the synthesis of fused tetrahydroisoquinoline systems using 1,1'-bi-2-naphthol (binol)-derived Brønsted acids. This transformation is the first in which activated benzene derivatives are used as internal nucleophiles, instead of electron-rich heteroaromatics, generating a quaternary stereocenter. Phenolic substitution on the aromatic ring of the phenethylamino moiety and the use of binol-derived N-triflylphosphoramides as catalysts are determinants to achieve reasonable levels of enantioselection, that is, up to 75% enantiomeric excess, in the α-amidoalkylation step. The procedure is complementary to the intermolecular α-amidoalkylation process, as opposite enantiomers are formed, and to the Pictet-Spengler cyclization, which allows the formation of tertiary stereocenters.
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74
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Duan J, Kwong FY. A Palladium-Catalyzed α-Arylation of Oxindoles with Aryl Tosylates. J Org Chem 2017; 82:6468-6473. [PMID: 28539045 DOI: 10.1021/acs.joc.7b00855] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A palladium-catalyzed monoselective C3 arylation of 2-oxindoles with aryl tosylates is described. With the Pd/CM-phos catalyst system, the corresponding 3-arylated oxindoles can be obtained in good to excellent yields (≤97%). The reaction conditions are mild (using 0.5 mol % Pd in general and KF as a base), and functional groups such as methyl ester, NH amido, and enolizable keto moieties are found to be compatible.
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Affiliation(s)
- Jindian Duan
- Department of Applied Biology and Chemical Technology and SKL of Chirosciences, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong
| | - Fuk Yee Kwong
- Department of Applied Biology and Chemical Technology and SKL of Chirosciences, The Hong Kong Polytechnic University , Hung Hom, Kowloon, Hong Kong.,Department of Chemistry, The Chinese University of Hong Kong , Shatin, New Territories, Hong Kong
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75
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Liu Y, Liu Y, Wang J, Wei Z, Cao J, Liang D, Lin Y, Duan H. Asymmetric phase-transfer catalysts bearing multiple hydrogen-bonding donors: Synthesis and application in nitro-Mannich reaction of isatin-derived N-Boc ketimines. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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76
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Kaur J, Kumari A, Bhardwaj VK, Chimni SS. Chiral Squaramide-Catalyzed Enantioselective Decarboxylative Addition of β-Keto Acids to Isatin Imines. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700011] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jasneet Kaur
- Department of Chemistry, U.G.C. Centre of Advance Studies in Chemistry; Guru Nanak Dev University; Amritsar 143005 India
| | - Anita Kumari
- Department of Chemistry, U.G.C. Centre of Advance Studies in Chemistry; Guru Nanak Dev University; Amritsar 143005 India
| | - Vimal K. Bhardwaj
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road Rupnagar 140001 India
| | - Swapandeep Singh Chimni
- Department of Chemistry, U.G.C. Centre of Advance Studies in Chemistry; Guru Nanak Dev University; Amritsar 143005 India
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77
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Wang H, Wang K, Ren Y, Li N, Tang B, Zhao G. Asymmetric Strecker Reactions Catalyzed by Thiourea Phosphonium and Ammonium Salts. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700029] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hongyu Wang
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong; Key Laboratory of Molecular and Nano Probes; Ministry of Education; Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
- Key Laboratory of Synthetic Chemistry of Natural Substances; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 People's Republic of China
| | - Kaiye Wang
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong; Key Laboratory of Molecular and Nano Probes; Ministry of Education; Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Yanfei Ren
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong; Key Laboratory of Molecular and Nano Probes; Ministry of Education; Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Na Li
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong; Key Laboratory of Molecular and Nano Probes; Ministry of Education; Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Bo Tang
- College of Chemistry; Chemical Engineering and Materials Science; Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong; Key Laboratory of Molecular and Nano Probes; Ministry of Education; Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Gang Zhao
- Key Laboratory of Synthetic Chemistry of Natural Substances; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 People's Republic of China
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78
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Karahan S, Tanyeli C. Organocatalytic enantioselective construction of isatin-derived N-alkoxycarbonyl 1,3-aminonaphthols via sterically encumbered hydrocarbon-substituted quinine-based squaramide. NEW J CHEM 2017. [DOI: 10.1039/c7nj01395g] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
2-Adamantyl substituted quinine-squaramide catalyzed aza-Friedel–Crafts reaction of N-carbamate isatin ketimines with naphthol afforded chiral isatin-derived 1,3-aminonaphthols with excellent enantioselectivity up to greater than 99% and quantitative yield.
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Affiliation(s)
- Seda Karahan
- Department of Chemistry
- Middle East Technical University
- Ankara
- Turkey
| | - Cihangir Tanyeli
- Department of Chemistry
- Middle East Technical University
- Ankara
- Turkey
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79
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Xie E, Rahman A, Lin X. Asymmetric synthesis of CF3- and indole-containing tetrahydro-β-carbolines via chiral spirocyclic phosphoric acid-catalyzed aza-Friedel–Crafts reaction. Org Chem Front 2017. [DOI: 10.1039/c7qo00229g] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enantioselective aza-Friedel–Crafts reaction of indoles with 1-trifluoromethyl-3,4-dihydro-β-carbolines has been developed to afford tetrahydro-β-carbolines with a CF3- and indole-containing quaternary stereocenter by using chiral phosphoric acid catalysis.
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Affiliation(s)
- En Xie
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Abdul Rahman
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Xufeng Lin
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
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80
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Cheng C, Lu X, Ge L, Chen J, Cao W, Wu X, Zhao G. Effective asymmetric vinylogous Mannich reaction of isatin imines with α,α-dicyanoolefins in the presence of a simple chiral amide phosphonium bifunctional phase transfer catalyst. Org Chem Front 2017. [DOI: 10.1039/c6qo00546b] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A Mannich reaction between N-Boc isatin imine and α,α-dicyanoolefin as well as subsequent oxidative cleavage of the malonic nitrile moiety were described.
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Affiliation(s)
- Cang Cheng
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Xuehe Lu
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Luo Ge
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Jie Chen
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Weiguo Cao
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Xiaoyu Wu
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
- Key Laboratory of Synthetic Chemistry of Natural Substances
| | - Gang Zhao
- Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
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81
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Xiao Y, Lin JB, Zhao YN, Liu JY, Xu PF. Exploring the Reactivity of Nitro-Activated 1,3-Enynes in an Organocatalytic One-Pot, Three-Component Coupling Reaction: A Tandem Catalytic Approach to a Novel 3-Nitrochroman Scaffold. Org Lett 2016; 18:6276-6279. [DOI: 10.1021/acs.orglett.6b03073] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Yu Xiao
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jun-Bing Lin
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yin-Na Zhao
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jin-Yu Liu
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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82
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Aranzamendi E, Arrasate S, Sotomayor N, González‐Díaz H, Lete E. Chiral Brønsted Acid-Catalyzed Enantioselective α-Amidoalkylation Reactions: A Joint Experimental and Predictive Study. ChemistryOpen 2016; 5:540-549. [PMID: 28032023 PMCID: PMC5167290 DOI: 10.1002/open.201600120] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Indexed: 01/01/2023] Open
Abstract
Enamides with a free NH group have been evaluated as nucleophiles in chiral Brønsted acid-catalyzed enantioselective α-amidoalkylation reactions of bicyclic hydroxylactams for the generation of quaternary stereocenters. A quantitative structure-reactivity relationship (QSRR) method has been developed to find a useful tool to rationalize the enantioselectivity in this and related processes and to orient the catalyst choice. This correlative perturbation theory (PT)-QSRR approach has been used to predict the effect of the structure of the substrate, nucleophile, and catalyst, as well as the experimental conditions, on the enantioselectivity. In this way, trends to improve the experimental results could be found without engaging in a long-term empirical investigation.
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Affiliation(s)
- Eider Aranzamendi
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
| | - Sonia Arrasate
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
| | - Nuria Sotomayor
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
| | - Humberto González‐Díaz
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
- IKERBASQUEBasque Foundation for Science48080BilbaoSpain
| | - Esther Lete
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
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83
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Organocatalytic Enantioselective Friedel-Crafts Reaction of Sesamol and Electron-rich Phenols with Alkylideneindolenine Intermediates Generated from Arylsulfonyl Indoles. ChemistrySelect 2016. [DOI: 10.1002/slct.201601425] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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84
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Wang Y, Jiang L, Li L, Dai J, Xiong D, Shao Z. An Arylation Strategy to Propargylamines: Catalytic Asymmetric Friedel-Crafts-type Arylation Reactions of C-Alkynyl Imines. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608918] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yingcheng Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 China
| | - Liang Jiang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 China
| | - Long Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 China
| | - Jun Dai
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 China
| | - Dan Xiong
- 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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85
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Wang Y, Jiang L, Li L, Dai J, Xiong D, Shao Z. An Arylation Strategy to Propargylamines: Catalytic Asymmetric Friedel-Crafts-type Arylation Reactions of C-Alkynyl Imines. Angew Chem Int Ed Engl 2016; 55:15142-15146. [DOI: 10.1002/anie.201608918] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 10/03/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Yingcheng Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 China
| | - Liang Jiang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 China
| | - Long Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 China
| | - Jun Dai
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology; Yunnan University; Kunming 650091 China
| | - Dan Xiong
- 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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86
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Vila C, Quintero L, Blay G, Muñoz MC, Pedro JR. Organocatalytic Enantioselective Synthesis of α-Hydroxyketones through a Friedel–Crafts Reaction of Naphthols and Activated Phenols with Aryl- and Alkylglyoxal Hydrates. Org Lett 2016; 18:5652-5655. [DOI: 10.1021/acs.orglett.6b02893] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Carlos Vila
- Departament
de Química Orgànica, Facultat de Química, Universitat de València, C/Dr. Moliner, 50, Burjassot, E-46100 València, Spain
| | - Lucia Quintero
- Departament
de Química Orgànica, Facultat de Química, Universitat de València, C/Dr. Moliner, 50, Burjassot, E-46100 València, Spain
| | - Gonzalo Blay
- Departament
de Química Orgànica, Facultat de Química, Universitat de València, C/Dr. Moliner, 50, Burjassot, E-46100 València, Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada, Universitat Politècnica de València, C/Camí de Vera, s/n, E-46022 València, Spain
| | - José R. Pedro
- Departament
de Química Orgànica, Facultat de Química, Universitat de València, C/Dr. Moliner, 50, Burjassot, E-46100 València, Spain
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87
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Zhou LJ, Zhang YC, Jiang F, He G, Yan J, Lu H, Zhang S, Shi F. Enantioselective Construction of Cyclic Enaminone-Based 3-Substituted 3-Amino-2-oxindole ScaffoldsviaCatalytic Asymmetric Additions of Isatin-Derived Imines. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600508] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lu-Jia Zhou
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Yu-Chen Zhang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Fei Jiang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Guofeng He
- Department of Radiotherapy; The First Affiliated Hospital of Nanjing Medical University; Nanjing 210029 People's Republic of China
| | - Jingjing Yan
- Department of Radiotherapy; The First Affiliated Hospital of Nanjing Medical University; Nanjing 210029 People's Republic of China
| | - Han Lu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
| | - Shu Zhang
- Department of Radiotherapy; The First Affiliated Hospital of Nanjing Medical University; Nanjing 210029 People's Republic of China
| | - Feng Shi
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Chemical Engineering; Jiangsu Normal University; Xuzhou 221116 People's Republic of China
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88
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Chen J, Wen X, Wang Y, Du F, Cai L, Peng Y. Asymmetric Mannich Reaction of Isatin-Based Ketimines with α-Diazomethylphosphonates Catalyzed by Chiral Silver Phosphate. Org Lett 2016; 18:4336-9. [DOI: 10.1021/acs.orglett.6b02095] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jing Chen
- Key Laboratory of Applied
Chemistry of Chongqing Municipality, School of Chemistry and Chemical
Engineering, Southwest University, Chongqing 400715, China
| | - Xiaojing Wen
- Key Laboratory of Applied
Chemistry of Chongqing Municipality, School of Chemistry and Chemical
Engineering, Southwest University, Chongqing 400715, China
| | - Yan Wang
- Key Laboratory of Applied
Chemistry of Chongqing Municipality, School of Chemistry and Chemical
Engineering, Southwest University, Chongqing 400715, China
| | - Fei Du
- Key Laboratory of Applied
Chemistry of Chongqing Municipality, School of Chemistry and Chemical
Engineering, Southwest University, Chongqing 400715, China
| | - Liu Cai
- Key Laboratory of Applied
Chemistry of Chongqing Municipality, School of Chemistry and Chemical
Engineering, Southwest University, Chongqing 400715, China
| | - Yungui Peng
- Key Laboratory of Applied
Chemistry of Chongqing Municipality, School of Chemistry and Chemical
Engineering, Southwest University, Chongqing 400715, China
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89
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Lian XL, Meng J, Han ZY. Ru(II)/Organo Relay Catalytic Three-Component Reaction of 3-Diazooxindoles, Amines, and Nitroalkene: Formal Synthesis of (−)-Psychotrimine. Org Lett 2016; 18:4270-3. [DOI: 10.1021/acs.orglett.6b02019] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xiao-Lei Lian
- Hefei National Laboratory
for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Jing Meng
- Hefei National Laboratory
for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Zhi-Yong Han
- Hefei National Laboratory
for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
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90
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Zhang X, Zhang J, Lin L, Zheng H, Wu W, Liu X, Feng X. Chiral N,N′
-Dioxide-Zinc(II) Complex-Catalyzed Asymmetric Aza-Friedel-Crafts Reaction of Isatin-Derived Ketimines with Indoles. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600630] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiying Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Jianlin Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Haifeng Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Wangbin Wu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry; Sichuan University; Chengdu 610064 People's Republic of China
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91
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Du D, Jiang Y, Xu Q, Li X, Shi M. Enantioselective Synthesis of Spirooxindole Enols: Regioselective and Asymmetric [3+2] Cyclization of 3-Isothiocyanato Oxindoles with Dibenzylidene Ketones. ChemistryOpen 2016; 5:311-4. [PMID: 27547639 PMCID: PMC4981050 DOI: 10.1002/open.201600034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Indexed: 12/02/2022] Open
Abstract
A novel cinchona-alkaloid-derived organocatalyst has been developed to catalyze the asymmetric regioselective [3+2] cycloaddition of 3-isothiocyanato oxindoles with dibenzylidene ketones. A series of spirooxindole enols could be obtained in high yields with good-to-excellent diastereo- and enantioselectivities.
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Affiliation(s)
- Dan Du
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences345 Lingling RoadShanghai200032P. R. China
| | - Yu Jiang
- Key Laboratory for Advanced Materials and Institute of Fine ChemicalsEast China University of Science and TechnologyMeilong Road No. 130Shanghai200237P. R. China
| | - Qin Xu
- Key Laboratory for Advanced Materials and Institute of Fine ChemicalsEast China University of Science and TechnologyMeilong Road No. 130Shanghai200237P. R. China
| | - Xiao‐Ge Li
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences345 Lingling RoadShanghai200032P. R. China
| | - Min Shi
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences345 Lingling RoadShanghai200032P. R. China
- Key Laboratory for Advanced Materials and Institute of Fine ChemicalsEast China University of Science and TechnologyMeilong Road No. 130Shanghai200237P. R. China
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92
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Jang HS, Kim Y, Kim DY. Enantioselective addition of diphenyl phosphonate to ketimines derived from isatins catalyzed by binaphthyl-modified organocatalysts. Beilstein J Org Chem 2016; 12:1551-6. [PMID: 27559405 PMCID: PMC4979900 DOI: 10.3762/bjoc.12.149] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 07/06/2016] [Indexed: 01/14/2023] Open
Abstract
Chiral binaphthyl-modified squaramide-catalyzed enantioselective addition of diphenyl phosphonate to ketimines derived from isatins has been achieved. This method affords practical and efficient access to chiral 3-amino-3-phosphonyl-substituted oxindole derivatives in high yields with excellent enantioselectivities (up to 99% ee).
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Affiliation(s)
- Hee Seung Jang
- Department of Chemistry, Soonchunhyang University, Soonchunhyang-Ro 22, Asan, Chungnam 31538, Korea
| | - Yubin Kim
- Department of Chemistry, Soonchunhyang University, Soonchunhyang-Ro 22, Asan, Chungnam 31538, Korea
| | - Dae Young Kim
- Department of Chemistry, Soonchunhyang University, Soonchunhyang-Ro 22, Asan, Chungnam 31538, Korea
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93
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Yun SH, Xia L, Kim SH, Lee YR. Rh(II)-Catalyzed Chemoselective Synthesis of 3-Substituted Oxindoles by C(sp2)−H and C(sp2)−N Functionalization of β-Enaminoesters. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sang Hyeon Yun
- School of Chemical Engineering; Yeungnam University; 214-1 Dae-dong Gyeongsan 712-749 Republic of Korea
| | - Likai Xia
- School of Chemical Engineering; Yeungnam University; 214-1 Dae-dong Gyeongsan 712-749 Republic of Korea
| | - Sung Hong Kim
- Analysis Research Division; Daegu Center; Korea Basic Science Institute; Daegu 702-701 Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering; Yeungnam University; 214-1 Dae-dong Gyeongsan 712-749 Republic of Korea
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94
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You Y, Wu ZJ, Chen JF, Wang ZH, Xu XY, Zhang XM, Yuan WC. Organocatalytic Asymmetric Michael Addition of 3-Pyrrolyloxindoles to β-Phthalimidonitroethene for the Synthesis of 3,3′-Disubstituted Oxindoles Bearing Contiguous 3,α,β-Triamino Functionality. J Org Chem 2016; 81:5759-65. [DOI: 10.1021/acs.joc.6b00896] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yong You
- University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Jian-Feng Chen
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhen-Hua Wang
- University of Chinese Academy of Sciences, Beijing 100049, China
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95
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Yoshida K, Itatsu Y, Fujino Y, Inoue H, Takao KI. Enantioselective Organocatalytic Construction of Spiroindane Derivatives by Intramolecular Friedel-Crafts-Type 1,4-Addition. Angew Chem Int Ed Engl 2016; 55:6734-8. [PMID: 27111396 DOI: 10.1002/anie.201601683] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Indexed: 12/27/2022]
Abstract
The highly enantioselective organocatalytic construction of spiroindanes containing an all-carbon quaternary stereocenter by intramolecular Friedel-Crafts-type 1,4-addition is described. The reaction was catalyzed by a cinchonidine-based primary amine and accelerated by water and p-bromophenol. A variety of spiro compounds containing quaternary stereocenters were obtained with excellent enantioselectivity (up to 95 % ee). The reaction was applied to the asymmetric formal synthesis of the spirocyclic natural products (-)-cannabispirenones A and B.
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Affiliation(s)
- Keisuke Yoshida
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Yukihiro Itatsu
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Yuta Fujino
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Hiroki Inoue
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Ken-Ichi Takao
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
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96
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Yoshida K, Itatsu Y, Fujino Y, Inoue H, Takao KI. Enantioselective Organocatalytic Construction of Spiroindane Derivatives by Intramolecular Friedel-Crafts-Type 1,4-Addition. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601683] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Keisuke Yoshida
- Department of Applied Chemistry; Keio University; Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Yukihiro Itatsu
- Department of Applied Chemistry; Keio University; Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Yuta Fujino
- Department of Applied Chemistry; Keio University; Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Hiroki Inoue
- Department of Applied Chemistry; Keio University; Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Ken-ichi Takao
- Department of Applied Chemistry; Keio University; Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
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97
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Amr FI, Vila C, Blay G, Muñoz MC, Pedro JR. Organocatalytic Enantioselective Alkylation of Pyrazol-3-ones with Isatin-Derived Ketimines: Stereocontrolled Construction of Vicinal Tetrasubstituted Stereocenters. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600036] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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98
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Vila C, Amr FI, Blay G, Muñoz MC, Pedro JR. Organocatalytic Enantioselective Synthesis of Pyrazoles Bearing a Quaternary Stereocenter. Chem Asian J 2016; 11:1532-6. [DOI: 10.1002/asia.201600325] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Carlos Vila
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 59 46100 Burjassot, València Spain
| | - Fares Ibrahim Amr
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 59 46100 Burjassot, València Spain
| | - Gonzalo Blay
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 59 46100 Burjassot, València Spain
| | - M. Carmen Muñoz
- Departament de Física Aplicada; Universitat Politècnica de València; Camino de Vera s/n 46022 València Spain
| | - José R. Pedro
- Departament de Química Orgànica; Facultat de Química; Universitat de València; Dr. Moliner 59 46100 Burjassot, València Spain
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99
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Han X, Chan WL, Yao W, Wang Y, Lu Y. Phosphine-mediated Highly Enantioselective Spirocyclization with Ketimines as Substrates. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600453] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaoyu Han
- Zhejiang Provincial Key Laboratory for Chemical & Biological Processing Technology of Farm Products, School of Biological and Chemical Engineering/School of Light Industry; Zhejiang University of Science and Technology; No. 318 Liuhe Road Hangzhou 310023 China
| | - Wai-Lun Chan
- Department of Chemistry; National University of Singapore (NUS); 3 Science Drive 3 Singapore 117543 Singapore
| | - Weijun Yao
- Department of Chemistry; National University of Singapore (NUS); 3 Science Drive 3 Singapore 117543 Singapore
| | - Yongjiang Wang
- Zhejiang Provincial Key Laboratory for Chemical & Biological Processing Technology of Farm Products, School of Biological and Chemical Engineering/School of Light Industry; Zhejiang University of Science and Technology; No. 318 Liuhe Road Hangzhou 310023 China
| | - Yixin Lu
- Department of Chemistry; National University of Singapore (NUS); 3 Science Drive 3 Singapore 117543 Singapore
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100
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Han X, Chan WL, Yao W, Wang Y, Lu Y. Phosphine-mediated Highly Enantioselective Spirocyclization with Ketimines as Substrates. Angew Chem Int Ed Engl 2016; 55:6492-6. [DOI: 10.1002/anie.201600453] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 02/18/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaoyu Han
- Zhejiang Provincial Key Laboratory for Chemical & Biological Processing Technology of Farm Products, School of Biological and Chemical Engineering/School of Light Industry; Zhejiang University of Science and Technology; No. 318 Liuhe Road Hangzhou 310023 China
| | - Wai-Lun Chan
- Department of Chemistry; National University of Singapore (NUS); 3 Science Drive 3 Singapore 117543 Singapore
| | - Weijun Yao
- Department of Chemistry; National University of Singapore (NUS); 3 Science Drive 3 Singapore 117543 Singapore
| | - Yongjiang Wang
- Zhejiang Provincial Key Laboratory for Chemical & Biological Processing Technology of Farm Products, School of Biological and Chemical Engineering/School of Light Industry; Zhejiang University of Science and Technology; No. 318 Liuhe Road Hangzhou 310023 China
| | - Yixin Lu
- Department of Chemistry; National University of Singapore (NUS); 3 Science Drive 3 Singapore 117543 Singapore
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