1
|
Cabré A, Verdaguer X, Riera A. Recent Advances in the Enantioselective Synthesis of Chiral Amines via Transition Metal-Catalyzed Asymmetric Hydrogenation. Chem Rev 2022; 122:269-339. [PMID: 34677059 PMCID: PMC9998038 DOI: 10.1021/acs.chemrev.1c00496] [Citation(s) in RCA: 118] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Chiral amines are key structural motifs present in a wide variety of natural products, drugs, and other biologically active compounds. During the past decade, significant advances have been made with respect to the enantioselective synthesis of chiral amines, many of them based on catalytic asymmetric hydrogenation (AH). The present review covers the use of AH in the synthesis of chiral amines bearing a stereogenic center either in the α, β, or γ position with respect to the nitrogen atom, reported from 2010 to 2020. Therefore, we provide an overview of the recent advances in the AH of imines, enamides, enamines, allyl amines, and N-heteroaromatic compounds.
Collapse
Affiliation(s)
- Albert Cabré
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, Barcelona E-08028, Spain.,Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, Barcelona E-08028, Spain
| | - Xavier Verdaguer
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, Barcelona E-08028, Spain.,Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, Barcelona E-08028, Spain
| | - Antoni Riera
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, Barcelona E-08028, Spain.,Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, Barcelona E-08028, Spain
| |
Collapse
|
2
|
Li C, Zhang S, Li S, Feng Y, Fan QH. Ruthenium-catalyzed enantioselective hydrogenation of quinoxalinones and quinazolinones. Org Chem Front 2022. [DOI: 10.1039/d1qo01598b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient Ru-catalyzed asymmetric hydrogenation of quinoxalinone and quinazolinone derivatives has been developed, providing a facile access to chiral dihydroquinoxalinones and dihydroquinazolinones with excellent enantioselectivities.
Collapse
Affiliation(s)
- Chenghao Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Shuxin Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Shan Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yu Feng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qing-Hua Fan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| |
Collapse
|
3
|
Zhang R, Ma R, Fu Q, Chen R, Wang Z, Wang L, Ma Y. Selective electrophilic di- and mono-fluorinations for the synthesis of 4-difluoromethyl and 4-fluoromethyl quinazolin(thi)ones by Selectfluor-triggered multi-component reaction. Org Chem Front 2022. [DOI: 10.1039/d1qo01728d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and efficient domino protocol for the selective synthesis of 4-difluoromethyl and 4-fluoromethyl quinazolin(thi)ones was established from readily available 2-aminoacetophenones and iso(thio)cyanates mediated by Selectfluor. The reaction outcomes are...
Collapse
|
4
|
Charvillat T, Bernardelli P, Daumas M, Pannecoucke X, Ferey V, Besset T. Hydrogenation of fluorinated molecules: an overview. Chem Soc Rev 2021; 50:8178-8192. [PMID: 34060550 DOI: 10.1039/d0cs00736f] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The review aims at providing an overview on the developments made in hydrogenation reactions of molecules having various fluorinated groups (F, CF3, CF2H, CF2Rf). Indeed, the hydrogenation of fluorine-containing molecules is a straightforward and atom-economical way to access challenging (chiral) fluorinated scaffolds. This promising field is still in its infancy and milestones are expected in the coming years. To illustrate that, the review will highlight the major contributions made in that field and will be organized by fluorinated groups.
Collapse
Affiliation(s)
- T Charvillat
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France.
| | - P Bernardelli
- Sanofi Sanofi R&D, Integrated Drug Discovery, Small Molecule Medicinal Chemistry, 1 avenue Pierre Brossolette, 91385 Chilly-Mazarin, France
| | - M Daumas
- Sanofi R&D, 371 rue du Professeur Blayac, 34184 Montpellier, France
| | - X Pannecoucke
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France.
| | - V Ferey
- Sanofi R&D, 371 rue du Professeur Blayac, 34184 Montpellier, France
| | - T Besset
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France.
| |
Collapse
|
5
|
Zhao Z, Li X, Wu B, Zhou Y. Biomimetic Asymmetric Reduction of Quinazolinones with Chiral and Regenerable
NAD
(P)H Models. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000045] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zi‐Biao Zhao
- State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Xiang Li
- State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Bo Wu
- State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Yong‐Gui Zhou
- State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 China
| |
Collapse
|
6
|
Chen MW, Yang Q, Deng Z, Ding Q, Peng Y. Synthesis of Chiral β-Fluoroalkyl β-Amino Acid Derivatives via Palladium-Catalyzed Hydrogenation. J Org Chem 2019; 84:10371-10379. [PMID: 31318545 DOI: 10.1021/acs.joc.9b01523] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An enantioselective palladium-catalyzed hydrogenation of β-fluoroalkyl β-amino acrylic acid derivatives has been successfully developed, providing the corresponding chiral β-fluoroalkyl β-amino acid derivatives in good yields with excellent enantioselectivities. In addition, chiral γ-fluoroalkyl γ-amino alcohol could be synthesized by a simple reduction of the corresponding hydrogenated product. The mechanism of the reaction was explored by deuterium-labeling experiments.
Collapse
Affiliation(s)
- Mu-Wang Chen
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education, Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering , Jiangxi Normal University , Nanchang , Jiangxi 330022 , China.,State Key Laboratory of Fine Chemicals , Dalian University of Technology , Dalian 116024 , China
| | - Qin Yang
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education, Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering , Jiangxi Normal University , Nanchang , Jiangxi 330022 , China
| | - Zhihong Deng
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education, Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering , Jiangxi Normal University , Nanchang , Jiangxi 330022 , China
| | - Qiuping Ding
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education, Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering , Jiangxi Normal University , Nanchang , Jiangxi 330022 , China
| | - Yiyuan Peng
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education, Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering , Jiangxi Normal University , Nanchang , Jiangxi 330022 , China
| |
Collapse
|
7
|
Meng FJ, Shi L, Jiang WF, Feng GS, Lu XB, Zhao ZB. Chiral phosphoric acid-catalyzed asymmetric transfer hydrogenation of quinazolinones. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.150947] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
8
|
Miyagawa M, Yoshida M, Kiyota Y, Akiyama T. Enantioselective Friedel–Crafts Alkylation Reaction of Heteroarenes with N‐Unprotected Trifluoromethyl Ketimines by Means of Chiral Phosphoric Acid. Chemistry 2019; 25:5677-5681. [DOI: 10.1002/chem.201901020] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Indexed: 02/04/2023]
Affiliation(s)
- Masamichi Miyagawa
- Department of ChemistryFaculty of ScienceGakushuin University, Mejiro Toshima-ku Tokyo 171-8588 Japan
| | - Masaru Yoshida
- Department of ChemistryFaculty of ScienceGakushuin University, Mejiro Toshima-ku Tokyo 171-8588 Japan
| | - Yuki Kiyota
- Department of ChemistryFaculty of ScienceGakushuin University, Mejiro Toshima-ku Tokyo 171-8588 Japan
| | - Takahiko Akiyama
- Department of ChemistryFaculty of ScienceGakushuin University, Mejiro Toshima-ku Tokyo 171-8588 Japan
| |
Collapse
|
9
|
Feng GS, Zhao ZB, Shi L, Zhou YG. Iridium-catalyzed asymmetric hydrogenation of quinazolinones. Org Chem Front 2019. [DOI: 10.1039/c9qo00443b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Herein, we reported iridium-catalyzed asymmetric hydrogenation of quinazolinones with up to 98% ee and excellent yields.
Collapse
Affiliation(s)
- Guang-Shou Feng
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Zi-Biao Zhao
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| | - Lei Shi
- Zhang Dayu School of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- P. R. China
| |
Collapse
|
10
|
Chen MW, Deng Z, Yang Q, Huang J, Peng Y. Enantioselective synthesis of trifluoromethylated dihydroquinoxalinones via palladium-catalyzed hydrogenation. Org Chem Front 2019. [DOI: 10.1039/c8qo01361f] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective palladium-catalyzed asymmetric hydrogenation of 3-(trifluoromethyl)quinoxalinones has been successfully developed, providing a general and facile access to chiral 3-(trifluoromethyl)-3,4-dihydroquinoxalinones with up to 99% ee.
Collapse
Affiliation(s)
- Mu-Wang Chen
- Key Laboratory of Small Functional Organic Molecule
- Ministry of Education
- Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering
- Jiangxi Normal University Nanchang
- Jiangxi 330022
| | - Zhihong Deng
- Key Laboratory of Small Functional Organic Molecule
- Ministry of Education
- Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering
- Jiangxi Normal University Nanchang
- Jiangxi 330022
| | - Qin Yang
- Key Laboratory of Small Functional Organic Molecule
- Ministry of Education
- Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering
- Jiangxi Normal University Nanchang
- Jiangxi 330022
| | - Jian Huang
- Key Laboratory of Small Functional Organic Molecule
- Ministry of Education
- Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering
- Jiangxi Normal University Nanchang
- Jiangxi 330022
| | - Yiyuan Peng
- Key Laboratory of Small Functional Organic Molecule
- Ministry of Education
- Jiangxi's Key Laboratory of Green Chemistry and College of Chemistry & Chemical Engineering
- Jiangxi Normal University Nanchang
- Jiangxi 330022
| |
Collapse
|
11
|
Chen MW, Yang Q, Deng Z, Zhou Y, Ding Q, Peng Y. Organocatalytic Asymmetric Reduction of Fluorinated Alkynyl Ketimines. J Org Chem 2018; 83:8688-8694. [DOI: 10.1021/acs.joc.8b00873] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mu-Wang Chen
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and College of Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Qin Yang
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and College of Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
- Jiangxi’s Key Laboratory of Green Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Zhihong Deng
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and College of Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Yirong Zhou
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and College of Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Qiuping Ding
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and College of Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
- Jiangxi’s Key Laboratory of Green Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| | - Yiyuan Peng
- Key Laboratory of Small Functional Organic Molecule, Ministry of Education and College of Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
- Jiangxi’s Key Laboratory of Green Chemistry, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
| |
Collapse
|
12
|
Feng GS, Chen MW, Shi L, Zhou YG. Facile Synthesis of Chiral Cyclic Ureas through Hydrogenation of 2-Hydroxypyrimidine/Pyrimidin-2(1H
)-one Tautomers. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801485] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Guang-Shou Feng
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Mu-Wang Chen
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| | - Lei Shi
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| |
Collapse
|
13
|
Feng GS, Chen MW, Shi L, Zhou YG. Facile Synthesis of Chiral Cyclic Ureas through Hydrogenation of 2-Hydroxypyrimidine/Pyrimidin-2(1H
)-one Tautomers. Angew Chem Int Ed Engl 2018; 57:5853-5857. [DOI: 10.1002/anie.201801485] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 03/14/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Guang-Shou Feng
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Mu-Wang Chen
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| | - Lei Shi
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 China
| |
Collapse
|
14
|
Lu YN, Lan JP, Mao YJ, Wang YX, Mei GJ, Shi F. Catalytic asymmetric de novo construction of dihydroquinazolinone scaffolds via enantioselective decarboxylative [4+2] cycloadditions. Chem Commun (Camb) 2018; 54:13527-13530. [DOI: 10.1039/c8cc08282k] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The first de novo construction of enantioenriched dihydroquinazolinones via an intermolecular strategy has been established. This approach also represents the first catalytic asymmetric [4+2] cycloaddition of vinyl benzoxazinanones with sulfonyl isocyanates.
Collapse
Affiliation(s)
- Yi-Nan Lu
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Jin-Ping Lan
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Yu-Jia Mao
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Ye-Xin Wang
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Guang-Jian Mei
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Feng Shi
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| |
Collapse
|
15
|
Remennikov GY. Synthesis of Condensed Heterocycles, Containing Partially Saturated Pyrimidine Nuclei, from Aromatic Pyrimidine Derivatives. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2864] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
16
|
Zhou D, Yu X, Zhang J, Wang W, Xie H. Organocatalytic asymmetric addition of alcohols to cyclic trifluoromethyl ketimines: highly enantioselective synthesis of chiral N,O-ketals. Org Biomol Chem 2016; 14:6193-6. [DOI: 10.1039/c6ob00890a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective addition of alcohols to cyclic trifluoromethyl ketimines catalyzed by quinine-thiourea is developed.
Collapse
Affiliation(s)
- Ding Zhou
- State Key Laboratory of Bioreactor Engineering
- Shanghai Key Laboratory of New Drug Design
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
| | - Xueting Yu
- State Key Laboratory of Bioreactor Engineering
- Shanghai Key Laboratory of New Drug Design
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
| | - Jian Zhang
- State Key Laboratory of Bioreactor Engineering
- Shanghai Key Laboratory of New Drug Design
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
| | - Wei Wang
- State Key Laboratory of Bioreactor Engineering
- Shanghai Key Laboratory of New Drug Design
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
| | - Hexin Xie
- State Key Laboratory of Bioreactor Engineering
- Shanghai Key Laboratory of New Drug Design
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
| |
Collapse
|
17
|
Zhou D, Huang Z, Yu X, Wang Y, Li J, Wang W, Xie H. A Quinine-Squaramide Catalyzed Enantioselective Aza-Friedel–Crafts Reaction of Cyclic Trifluoromethyl Ketimines with Naphthols and Electron-Rich Phenols. Org Lett 2015; 17:5554-7. [DOI: 10.1021/acs.orglett.5b02668] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | | | | | | | | | - Wei Wang
- Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131-0001, United States
| | | |
Collapse
|
18
|
Huang YY, Yang X, Chen Z, Verpoort F, Shibata N. Catalytic Asymmetric Synthesis of Enantioenriched Heterocycles Bearing a CCF3Stereogenic Center. Chemistry 2015; 21:8664-84. [DOI: 10.1002/chem.201500361] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|