1
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Lee HJ, Maruoka K. Recent Asymmetric Phase-Transfer Catalysis with Chiral Binaphthyl-Modified and Related Phase-Transfer Catalysts over the Last 10 Years. CHEM REC 2023:e202200286. [PMID: 36850022 DOI: 10.1002/tcr.202200286] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/14/2023] [Indexed: 03/01/2023]
Abstract
In this personal account, we describe our recent advances in the three types of phase-transfer catalysis for various transformations including asymmetric induction: Firstly, asymmetric phase-transfer catalysis with Maruoka-type C2 -symmetric chiral biaryl-modified tetraalkylammonium salts and phosphonium salts; Secondly, asymmetric phase-transfer catalysis under base-free and neutral conditions; Thirdly, hydrogen-bonding catalysis using tetraalkylammonium and trialkylsulfonium salts. These three different strategies are illustrated by using various phase-transfer catalyzed transformations.
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Affiliation(s)
- Hyo-Jun Lee
- Department of Chemistry, Kunsan National University, Gunsan, 54150, Republic of Korea
| | - Keiji Maruoka
- Graduate School of Pharmaceutical Sciences, Kyoto University Sakyo, Kyoto, 606-8501, Japan.,School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
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2
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Perveen S, Zhang S, Wang L, Song P, Ouyang Y, Jiao J, Duan X, Li P. Synthesis of Axially Chiral Biaryls via Enantioselective Ullmann Coupling of
ortho
‐Chlorinated Aryl Aldehydes Enabled by a Chiral 2,2′‐Bipyridine Ligand. Angew Chem Int Ed Engl 2022; 61:e202212108. [DOI: 10.1002/anie.202212108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Saima Perveen
- School of Chemistry Xi'an Jiaotong University Xi'an Shaanxi 710049 China
| | - Shuai Zhang
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Linghua Wang
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Peidong Song
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Yizhao Ouyang
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
| | - Jiao Jiao
- School of Chemistry Xi'an Jiaotong University Xi'an Shaanxi 710049 China
| | - Xin‐Hua Duan
- School of Chemistry Xi'an Jiaotong University Xi'an Shaanxi 710049 China
| | - Pengfei Li
- School of Chemistry Xi'an Jiaotong University Xi'an Shaanxi 710049 China
- Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710054 China
- State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
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3
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Manaprasertsak A, Tharamak S, Schedl C, Roller A, Widhalm M. Improved Access to Chiral Tetranaphthoazepinium-Based Organocatalysts Using Aqueous Ammonia as Nitrogen Source. Molecules 2019; 24:molecules24213844. [PMID: 31731415 PMCID: PMC6864439 DOI: 10.3390/molecules24213844] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 10/22/2019] [Accepted: 10/23/2019] [Indexed: 11/16/2022] Open
Abstract
The class of 3,3'-diaryl substituted tetranaphthobisazepinium bromides has found wide application as highly efficient C2-symmetrical phase-transfer catalysts (PTCs, Maruoka type catalysts). Unfortunately, the synthesis requires a large number of steps and hampers the build-up of catalyst libraries which are often desired for screening experiments. Here, we present a more economic strategy using dinaphthoazepine 7 as the common key intermediate. Only at this stage various aryl substituents are introduced, and only two individual steps are required to access target structures. This protocol was applied to synthesize ten tetranaphthobisazepinium compounds 1a-1j. Their efficiency as PTCs was tested in the asymmetric substitution of tert-butyl 2-((diphenylmethylene)amino)acetate. Enantioselectivities up to 92% have been observed with new catalysts.
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Affiliation(s)
- Auraya Manaprasertsak
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; (A.M.); (S.T.)
| | - Sorachat Tharamak
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; (A.M.); (S.T.)
| | - Christina Schedl
- Institute of Organic Chemistry, University of Vienna, Währinger Straße 38, 1090 Wien, Austria;
| | - Alexander Roller
- Institute of Inorganic Chemistry, University of Vienna, Währinger Straße 42, Wien 1090, Austria;
| | - Michael Widhalm
- Institute of Chemical Catalysis, University of Vienna, Währinger Straße 38, 1090 Wien, Austria
- Correspondence: ; Tel.: +43-01-4277-70305
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4
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Atroposelective synthesis of tetra-ortho-substituted biaryls by catalyst-controlled non-canonical polyketide cyclizations. Nat Catal 2019. [DOI: 10.1038/s41929-019-0345-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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5
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Tharamak S, Knittl-Frank C, Manaprasertsak A, Pengsook A, Suchy L, Schuller P, Happl B, Roller A, Widhalm M. Economy of Catalyst Synthesis-Convenient Access to Libraries of Di- and Tetranaphtho Azepinium Compounds. Molecules 2018; 23:E750. [PMID: 29587344 PMCID: PMC6017052 DOI: 10.3390/molecules23040750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 03/14/2018] [Accepted: 03/20/2018] [Indexed: 11/16/2022] Open
Abstract
Efficient optimization procedures in chiral catalysis are usually linked to a straightforward strategy to access groups of structurally similar catalysts required for fine-tuning. The ease of building up such ligand libraries can be increased when the structure-modifying step (introduction of a substituent) is done at a later stage of the synthesis. This is demonstrated for the extended family of di- and tetranaphtho azepinium compounds, widely used as chiral phase transfer catalysts (PTC). Using 2,6-diiodo-4,5-dihydro-3H-dinaphtho[2,1-c:1',2'-e]azepine and 4,8-diiodo-6,7-dihydro-5H-dibenzo[c,e]azepine, respectively, as key intermediates, 18 spiro-azepinium compounds were synthesized in a total yield of 25-42% over 6-7 steps from 1,1'-binaphthyl-2,2'-dicarboxylic acid or diphenic acid, respectively. The replacement of iodo groups with aryl substituents was performed as the last or the penultimate step of the synthesis.
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Affiliation(s)
- Sorachat Tharamak
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; (S.T.); (A.M.); (A.P.)
| | - Christian Knittl-Frank
- Institute of Organic Chemistry, University of Vienna, Währinger Straße 38, Wien 1090, Austria; (C.K.-F.); (L.S.); (P.S.)
| | - Auraya Manaprasertsak
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; (S.T.); (A.M.); (A.P.)
| | - Anchulee Pengsook
- Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand; (S.T.); (A.M.); (A.P.)
| | - Lydia Suchy
- Institute of Organic Chemistry, University of Vienna, Währinger Straße 38, Wien 1090, Austria; (C.K.-F.); (L.S.); (P.S.)
| | - Philipp Schuller
- Institute of Organic Chemistry, University of Vienna, Währinger Straße 38, Wien 1090, Austria; (C.K.-F.); (L.S.); (P.S.)
| | - Barbara Happl
- Institute of Inorganic Chemistry, University of Vienna, Währinger Straße 42, Wien 1090, Austria; (B.H.); (A.R.)
| | - Alexander Roller
- Institute of Inorganic Chemistry, University of Vienna, Währinger Straße 42, Wien 1090, Austria; (B.H.); (A.R.)
| | - Michael Widhalm
- Institute of Chemical Catalysis, University of Vienna, Währinger Straße 38, Wien 1090, Austria
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6
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Catalytic asymmetric synthesis of axially chiral 2-amino-1,1′-biaryl compounds by phase-transfer-catalyzed kinetic resolution and desymmetrization. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.10.074] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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7
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Schettini R, De Riccardis F, Della Sala G, Izzo I. Enantioselective Alkylation of Amino Acid Derivatives Promoted by Cyclic Peptoids under Phase-Transfer Conditions. J Org Chem 2016; 81:2494-505. [PMID: 26914694 DOI: 10.1021/acs.joc.6b00065] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The effects of substituents and cavity size on catalytic efficiency of proline-rich cyclopeptoids under phase-transfer conditions were studied. High affinity constants (Ka) for the sodium and potassium cations, comparable to those reported for crown ethers, were observed for an alternated N-benzylglycine/L-proline hexameric cyclopeptoid. This compound was found to catalyze the alkylation of N-(diphenylmethylene)glycine cumyl ester in values of enantioselectivities comparable with those reported for the Cinchona alkaloid ammonium salts derivatives (83-96% ee), and with lower catalyst loading (1-2.5% mol), in the presence of a broad range of benzyl, allyl and alkyl halides.
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Affiliation(s)
- Rosaria Schettini
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Francesco De Riccardis
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Giorgio Della Sala
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Irene Izzo
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
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8
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Kaneko S, Kumatabara Y, Shirakawa S. A new generation of chiral phase-transfer catalysts. Org Biomol Chem 2016; 14:5367-76. [PMID: 26754659 DOI: 10.1039/c5ob02446c] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Phase-transfer catalysis has long been recognized as a versatile method for organic synthesis. In particular, over more than the past three decades, asymmetric phase-transfer catalysis based on the use of structurally well-defined chiral catalysts has become a topic of great scientific interest. Although various effective chiral catalysts have already been reported and these catalysts were utilized for practical asymmetric transformations, further design and development of new chiral phase-transfer catalysts are still attractive research subjects in organic chemistry due to the high utility and practicability of phase-transfer-catalyzed reactions. This review focuses on the recent examples of newly designed effective chiral phase-transfer catalysts.
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Affiliation(s)
- Shiho Kaneko
- Department of Environmental Science, Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14, Bunkyo-machi, Nagasaki 852-8521, Japan.
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9
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Cleghorn LAT, Albrecht S, Stojanovski L, Simeons FRJ, Norval S, Kime R, Collie IT, De Rycker M, Campbell L, Hallyburton I, Frearson JA, Wyatt PG, Read KD, Gilbert IH. Discovery of Indoline-2-carboxamide Derivatives as a New Class of Brain-Penetrant Inhibitors of Trypanosoma brucei. J Med Chem 2015; 58:7695-706. [PMID: 26418485 PMCID: PMC4601051 DOI: 10.1021/acs.jmedchem.5b00596] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
![]()
There is an urgent need for new,
brain penetrant small molecules
that target the central nervous system second stage of human African
trypanosomiasis (HAT). We report that a series of novel indoline-2-carboxamides
have been identified as inhibitors of Trypanosoma brucei from screening of a focused protease library against Trypanosoma brucei brucei in culture. We describe
the optimization and characterization of this series. Potent antiproliferative
activity was observed. The series demonstrated excellent pharmacokinetic
properties, full cures in a stage 1 mouse model of HAT, and a partial
cure in a stage 2 mouse model of HAT. Lack of tolerability prevented
delivery of a fully curative regimen in the stage 2 mouse model and
thus further progress of this series.
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Affiliation(s)
- Laura A T Cleghorn
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Sébastien Albrecht
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Laste Stojanovski
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Frederick R J Simeons
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Suzanne Norval
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Robert Kime
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Iain T Collie
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Manu De Rycker
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Lorna Campbell
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Irene Hallyburton
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Julie A Frearson
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Paul G Wyatt
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Kevin D Read
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
| | - Ian H Gilbert
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Sir James Black Centre, Dundee, DD1 5EH, U.K
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10
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Peng W, Wan J, Xie B, Ma X. 9-Amino-(9-deoxy)cinchona alkaloid-derived new chiral phase-transfer catalysts. Org Biomol Chem 2015; 12:8336-45. [PMID: 25216100 DOI: 10.1039/c4ob01648c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new class of 9-amino-(9-deoxy)cinchona alkaloid-derived chiral phase-transfer catalysts bearing amino groups was developed by using known cinchona alkaloids as the starting materials. Due to the transformation of the 9-hydroxyl group into a 9-amino functional group, the catalytic performances were significantly improved in comparison with the corresponding first generation phase-transfer catalysts, and excellent yields (92-99%) and high enantioselectivities (87-96% ee) were achieved in the benchmark asymmetric α-alkylation of glycine Schiff base. Based on the special contribution of the amino group to the high yield and enantioselectivity, the possible catalytic mechanism was conjectured.
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Affiliation(s)
- Wenwen Peng
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China.
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11
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Feng D, Xu J, Wan J, Xie B, Ma X. Facile one-pot fabrication of a silica gel-supported chiral phase-transfer catalyst—N-(2-cyanobenzyl)-O(9)-allyl-cinchonidinium salt. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01518e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel silica gel-supported cinchona alkaloid-based PTC catalyst was prepared by one-pot synthesis for the first time. Excellent enantioselectivities (72.0–96.9% ee) and 80–96% yields in enantioselective α-alkylation were achieved without significant loss in the catalytic performance for five runs.
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Affiliation(s)
- Dandan Feng
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- PR China
| | - Jinghan Xu
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- PR China
| | - Jingwei Wan
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- PR China
| | - Bing Xie
- School of Chemistry and Environmental Science
- Guizhou Minzhu University
- Guiyang
- PR China
| | - Xuebing Ma
- Key Laboratory of Applied Chemistry of Chongqing Municipality
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing
- PR China
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12
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Schettini R, Nardone B, De Riccardis F, Della Sala G, Izzo I. Cyclopeptoids as Phase-Transfer Catalysts for the Enantioselective Synthesis of α-Amino Acids. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403224] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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13
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Shirakawa S, Makino H, Yoshidome T, Maruoka K. Effect of Brønsted acid co-catalyst in asymmetric conjugate addition of 3-aryloxindoles to maleimide under base-free phase-transfer conditions. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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14
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Petrova GP, Li HB, Maruoka K, Morokuma K. Asymmetric Phase-Transfer Catalysis with Homo- and Heterochiral Quaternary Ammonium Salts: A Theoretical Study. J Phys Chem B 2014; 118:5154-67. [DOI: 10.1021/jp501520g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Galina P. Petrova
- Fukui
Institute for Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan
| | - Hai-Bei Li
- Fukui
Institute for Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan
- School
of Ocean, Shandong University, Weihai 264209, China
| | - Keiji Maruoka
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Keiji Morokuma
- Fukui
Institute for Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan
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15
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Shirakawa S, Wang L, He R, Arimitsu S, Maruoka K. A Base-Free Neutral Phase-Transfer Reaction System. Chem Asian J 2014; 9:1586-93. [DOI: 10.1002/asia.201402194] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Indexed: 01/12/2023]
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16
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Shirakawa S, Wu X, Maruoka K. Kinetic Resolution of Axially Chiral 2-Amino-1,1′-Biaryls by Phase-Transfer-Catalyzed N-Allylation. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201308237] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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Shirakawa S, Wu X, Maruoka K. Kinetic Resolution of Axially Chiral 2-Amino-1,1′-Biaryls by Phase-Transfer-Catalyzed N-Allylation. Angew Chem Int Ed Engl 2013; 52:14200-3. [DOI: 10.1002/anie.201308237] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Indexed: 12/12/2022]
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18
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Liu K, Wu X, Kan SBJ, Shirakawa S, Maruoka K. Phase-Transfer-Catalyzed Asymmetric Synthesis of Axially Chiral Anilides. Chem Asian J 2013; 8:3214-21. [DOI: 10.1002/asia.201301036] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Indexed: 11/06/2022]
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19
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Shirakawa S, Maruoka K. Neue Entwicklungen bei asymmetrischen Phasentransferreaktionen. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201206835] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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20
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Shirakawa S, Maruoka K. Recent developments in asymmetric phase-transfer reactions. Angew Chem Int Ed Engl 2013; 52:4312-48. [PMID: 23450630 DOI: 10.1002/anie.201206835] [Citation(s) in RCA: 529] [Impact Index Per Article: 48.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Indexed: 11/09/2022]
Abstract
Phase-transfer catalysis has been recognized as a powerful method for establishing practical protocols for organic synthesis, because it offers several advantages, such as operational simplicity, mild reaction conditions, suitability for large-scale synthesis, and the environmentally benign nature of the reaction system. Since the pioneering studies on highly enantioselective alkylations promoted by chiral phase-transfer catalysts, this research field has served as an attractive area for the pursuit of "green" sustainable chemistry. A wide variety of asymmetric transformations catalyzed by chiral onium salts and crown ethers have been developed for the synthesis of valuable organic compounds in the past several decades, especially in recent years.
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Affiliation(s)
- Seiji Shirakawa
- Laboratory of Synthetic Organic Chemistry, Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
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21
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Abstract
A series of chiral quaternary ammonium salts derived from commercially available (R)- or (S)-binaphthol have been designed as new C2-symmetric chiral phase-transfer catalysts. In order to realize the flexible design of these phase-transfer catalysts, the combinatorial design approach has been developed. Chiral high-performance organocatalysts, thus obtained, have been successfully applied to the highly practical asymmetric synthesis of various amino acid derivatives, including α-alkyl and α,α-dialkyl-α-amino acids in addition to alkaloids. Furthermore, several chiral bifunctional phase-transfer catalysts have been designed and synthesized for effecting base-free phase-transfer reactions under essentially neutral conditions in order to realize green sustainable chemistry.
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22
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Denmark SE, Gould ND, Wolf LM. A systematic investigation of quaternary ammonium ions as asymmetric phase-transfer catalysts. Synthesis of catalyst libraries and evaluation of catalyst activity. J Org Chem 2011; 76:4260-336. [PMID: 21446721 PMCID: PMC3107728 DOI: 10.1021/jo2005445] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Despite over three decades of research into asymmetric phase-transfer catalysis (APTC), a fundamental understanding of the factors that affect the rate and stereoselectivity of this important process are still obscure. This paper describes the initial stages of a long-term program aimed at elucidating the physical organic foundations of APTC employing a chemoinformatic analysis of the alkylation of a protected glycine imine with libraries of enantiomerically enriched quaternary ammonium ions. The synthesis of the quaternary ammonium ions follows a diversity-oriented approach wherein the tandem inter[4 + 2]/intra[3 + 2] cycloaddition of nitroalkenes serves as the key transformation. A two-part synthetic strategy comprised of (1) preparation of enantioenriched scaffolds and (2) development of parallel synthesis procedures is described. The strategy allows for the facile introduction of four variable groups in the vicinity of a stereogenic quaternary ammonium ion. The quaternary ammonium ions exhibited a wide range of activity and to a lesser degree enantioselectivity. Catalyst activity and selectivity are rationalized in a qualitative way on the basis of the effective positive potential of the ammonium ion.
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Affiliation(s)
- Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois , Urbana, Illinois 61801, United States.
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23
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Lu TJ, Lin CK. Asymmetric Synthesis of α-Methyl-α-Amino Acids via Diastereoselective Alkylation of (1S)-(+)-3-Carene Derived Tricyclic Iminolactone. J Org Chem 2011; 76:1621-33. [PMID: 21306163 DOI: 10.1021/jo1022537] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ta-Jung Lu
- Department of Chemistry, National Chung-Hsing University, Taichung, Taiwan 40227, Republic of China
| | - Cheng-Kun Lin
- Department of Chemistry, National Chung-Hsing University, Taichung, Taiwan 40227, Republic of China
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Maruoka K. Highly practical amino acid and alkaloid synthesis using designer chiral phase transfer catalysts as high-performance organocatalysts. CHEM REC 2010; 10:254-9. [DOI: 10.1002/tcr.201000019] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Maruoka K. Design of Sophisticated Bidentate Lewis Acids and Organocatalysts for Fine Organic Synthesis. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2009. [DOI: 10.1246/bcsj.82.917] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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26
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Brath H, Mešková M, Putala M. Suzuki Cross-Coupling at the Chiral Groove of 1,1′-Binaphthyl: Stereoconservation versus Deracemization Pathway. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900071] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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27
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Wu HF, Lin WB, Xia LZ, Luo YG, Chen XZ, Li GY, Zhang GL, Pan XF. ‘N-Stereogenic Quaternary Ammonium Salts’ from L-Amino Acids: Synthesis, Separation, and Absolute Configuration. Helv Chim Acta 2009. [DOI: 10.1002/hlca.200800326] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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28
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Kiasat AR, Badri R, Zargar B, Sayyahi S. Poly(ethylene glycol) Grafted onto Dowex Resin: An Efficient, Recyclable, and Mild Polymer-Supported Phase Transfer Catalyst for the Regioselective Azidolysis of Epoxides in Water. J Org Chem 2008; 73:8382-5. [DOI: 10.1021/jo801356y] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ali Reza Kiasat
- Chemistry Department, College of Science, Chamran University, Ahvaz 61357-4-3169, Iran
| | - Rashid Badri
- Chemistry Department, College of Science, Chamran University, Ahvaz 61357-4-3169, Iran
| | - Behrouz Zargar
- Chemistry Department, College of Science, Chamran University, Ahvaz 61357-4-3169, Iran
| | - Soheil Sayyahi
- Chemistry Department, College of Science, Chamran University, Ahvaz 61357-4-3169, Iran
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Lu TJ, Lin CK. Asymmetric Synthesis of α-Amino Acids: Preparation and Alkylation of Monocyclic Iminolactones Derived from α-Methyl trans-Cinnamaldehyde. J Org Chem 2008; 73:9527-34. [DOI: 10.1021/jo801514g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ta-Jung Lu
- Department of Chemistry, National Chung-Hsing University, Taichung, Taiwan 40227, Republic of China
| | - Cheng-Kun Lin
- Department of Chemistry, National Chung-Hsing University, Taichung, Taiwan 40227, Republic of China
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Nakayama K, Maruoka K. Practical asymmetric synthesis of α-methylserine derivatives under mild phase-transfer conditions. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.07.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kitamura M, Shirakawa S, Arimura Y, Wang X, Maruoka K. Combinatorial Design of Simplified High-Performance Chiral Phase-Transfer Catalysts for Practical Asymmetric Synthesis of α-Alkyl- and α,α-Dialkyl-α-Amino Acids. Chem Asian J 2008; 3:1702-14. [DOI: 10.1002/asia.200800107] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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