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Cristofori V, Illuminati D, Bisquoli C, Catani M, Compagnin G, Turrin G, Trapella C, Fantinati A. Enzymatic Desymmetrisation of Prochiral meso-1,2-Disubstituted-1,2-Diaminoethane for the Synthesis of Key Enantioenriched (-)-Nutlin-3 Precursor. Molecules 2024; 29:3267. [PMID: 39064846 PMCID: PMC11279714 DOI: 10.3390/molecules29143267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 07/01/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
Herein we present the biocatalysed preparation of a mono-N-carbamate-protected precursor of antitumoral Nutlin-3a through enantioselective alkoxycarbonylation of meso-1,2-disubstituted-1,2-diaminoethane using enzyme lipases and dialkyl carbonates as acylating agents. A series of supported or free lipase enzymes were screened in combination with commercially available diallyl, diethyl and dimethyl carbonates. The reactions were conducted at different temperatures, for different reaction times and with variable co-solvent systems to evaluate the effects on the enzyme catalytic activity. The best results in terms of conversion, enantiomeric excess and yield were obtained when lipase from Candida antarctica B (CAL-B) was used with diallyl carbonate (DAC) when conducting the reaction solventless at 75 °C.
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Affiliation(s)
- Virginia Cristofori
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Luigi Borsari, 46, 44121 Ferrara, Italy; (V.C.); (C.B.); (M.C.); (G.C.)
| | - Davide Illuminati
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 213/d, 41125 Modena, Italy;
| | - Chiara Bisquoli
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Luigi Borsari, 46, 44121 Ferrara, Italy; (V.C.); (C.B.); (M.C.); (G.C.)
| | - Martina Catani
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Luigi Borsari, 46, 44121 Ferrara, Italy; (V.C.); (C.B.); (M.C.); (G.C.)
| | - Greta Compagnin
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Luigi Borsari, 46, 44121 Ferrara, Italy; (V.C.); (C.B.); (M.C.); (G.C.)
| | - Giulia Turrin
- Department of Environmental and Prevention Sciences, University of Ferrara, Corso Ercole I d’Este, 32, 44121 Ferrara, Italy; (G.T.); (A.F.)
| | - Claudio Trapella
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Luigi Borsari, 46, 44121 Ferrara, Italy; (V.C.); (C.B.); (M.C.); (G.C.)
| | - Anna Fantinati
- Department of Environmental and Prevention Sciences, University of Ferrara, Corso Ercole I d’Este, 32, 44121 Ferrara, Italy; (G.T.); (A.F.)
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2
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Mert S, Erdebil Ö. Anion-Binding Properties of Aliphatic Symmetric Squaramide Receptors. ACS OMEGA 2024; 9:8333-8342. [PMID: 38405436 PMCID: PMC10883022 DOI: 10.1021/acsomega.3c09094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/10/2023] [Accepted: 01/19/2024] [Indexed: 02/27/2024]
Abstract
Squaramides (SQs), which are very popular for their H-bonding ability, have attracted great interest due to their wide range of applications such as asymmetric synthesis, pharmacology, and anion transportation. In this study, aliphatic symmetric SQs based on cis/trans-1,2-diaminocyclohexane (DACH) substituted with cyclic tertiary amines, synthesized in four steps under simple reaction conditions, were investigated for the first time for their ability to bind Cl-, Br-, and I- anions. The changes in cis/trans geometric isomers and the cyclic ring (pyrrolidine vs piperidine) were found to have a combined effect on the degree of anion binding. The spectroscopic titrations of the SQs with TBA-Cl, TBA-Br, and TBA-I in the range of 0.2 to 20.0 equiv were monitored by 1H NMR, and the analyses of the magnitude of chemical shift differences in the NH peaks of the SQs in course of titration were performed by DynaFit and BindFit programs for the calculation of their Ka values. All symmetric SQs I-IV were found to selectively bind Cl- anion more strongly than Br- anion to varying degrees depending on the SQ derivatives. Especially, SQ IV, which has a symmetric trans-DACH and a pyrrolidine ring, was found to have the highest Cl- anion-binding ability compared to the other SQs. However, the SQs did not show any change in the chemical shift of the NH proton in 1H NMR upon successive addition of TBA-I, indicating that they do not interact with I- anion. The stoichiometries of the complexation behavior of SQs I-IV toward Cl- and Br- anions were also analyzed by Job plots.
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Affiliation(s)
- Serap Mert
- Department
of Chemistry and Chemical Processing Technology, Kocaeli University, Kocaeli 41140, Turkey
- Department
of Polymer Science and Technology, Kocaeli
University, Kocaeli 41001, Turkey
- Center
for Stem Cell and Gene Therapies Research and Practice, Kocaeli University, Kocaeli 41001, Turkey
| | - Özden Erdebil
- Department
of Polymer Science and Technology, Kocaeli
University, Kocaeli 41001, Turkey
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3
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Yamamoto Y, Yaji K, Ito T. Practical Isolation of tert-Butyl [(1 S,2 R)-2-Aminocyclohexyl]carbamate ( R)-Mandelate through Diastereomeric Salt Formation under Thermodynamic Control. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuhei Yamamoto
- Process Chemistry, Pharmaceutical Sciences, Takeda Pharmaceutical Company Limited, 17-85 Jusohonmachi 2-chome, Yodogawa-ku, Osaka 532-8686, Japan
| | - Kentaro Yaji
- Process Chemistry, Pharmaceutical Sciences, Takeda Pharmaceutical Company Limited, 17-85 Jusohonmachi 2-chome, Yodogawa-ku, Osaka 532-8686, Japan
| | - Tatsuya Ito
- Process Chemistry, Pharmaceutical Sciences, Takeda Pharmaceutical Company Limited, 17-85 Jusohonmachi 2-chome, Yodogawa-ku, Osaka 532-8686, Japan
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4
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van Beek C, Samoshin VV. Conformationally locked cis-1,2-diaminocyclohexane-based axially chiral ligands for asymmetric catalysis. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Engler H, Lansing M, Gordon CP, Neudörfl JM, Schäfer M, Schlörer NE, Copéret C, Berkessel A. Olefin Epoxidation Catalyzed by Titanium–Salalen Complexes: Synergistic H 2O 2 Activation by Dinuclear Ti Sites, Ligand H-Bonding, and π-Acidity. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05320] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Hauke Engler
- Department of Chemistry, Cologne University, Greinstraße 4, 50939 Cologne, Germany
| | - Markus Lansing
- Department of Chemistry, Cologne University, Greinstraße 4, 50939 Cologne, Germany
| | - Christopher P. Gordon
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 2, 8093 Zurich, Switzerland
| | - Jörg-M. Neudörfl
- Department of Chemistry, Cologne University, Greinstraße 4, 50939 Cologne, Germany
| | - Mathias Schäfer
- Department of Chemistry, Cologne University, Greinstraße 4, 50939 Cologne, Germany
| | - Nils E. Schlörer
- Department of Chemistry, Cologne University, Greinstraße 4, 50939 Cologne, Germany
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 2, 8093 Zurich, Switzerland
| | - Albrecht Berkessel
- Department of Chemistry, Cologne University, Greinstraße 4, 50939 Cologne, Germany
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6
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Dolja E, Funken N, Slak D, Schnakenburg G, Gansäuer A. A Divergent Duo: Palladium Catalyzed Carboamination in Enantioselective Desymmetrization and Regiodivergent Catalysis. ChemCatChem 2019. [DOI: 10.1002/cctc.201901784] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Etilia Dolja
- Kekulé-Institut für Organische Chemie und BiochemieUniversität Bonn Gerhard Domagk-Straße 1 Bonn 53121 Germany
| | - Nico Funken
- Kekulé-Institut für Organische Chemie und BiochemieUniversität Bonn Gerhard Domagk-Straße 1 Bonn 53121 Germany
| | - Daniel Slak
- Kekulé-Institut für Organische Chemie und BiochemieUniversität Bonn Gerhard Domagk-Straße 1 Bonn 53121 Germany
| | - Gregor Schnakenburg
- Institut für Anorganische ChemieUniversität Bonn Gerhard Domagk-Straße 1 Bonn 53121 Germany
| | - Andreas Gansäuer
- Kekulé-Institut für Organische Chemie und BiochemieUniversität Bonn Gerhard Domagk-Straße 1 Bonn 53121 Germany
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7
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Tezeren MA, Yeşil TA, Zorlu Y, Tilki T, Ertürk E. Enantiopure cis
- and trans
-2-(2-Aminocyclohexyl)phenols: Effective Preparation, Solid-State Characterization, and Application in Asymmetric Organocatalysis. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Mustafa A. Tezeren
- Institute of Chemical Technology; TÜBITAK Marmara Research Center; 41470 Gebze Kocaeli Turkey
- Department of Chemistry; Süleyman Demirel University; 32260 Isparta Turkey
| | - Tolga A. Yeşil
- Institute of Chemical Technology; TÜBITAK Marmara Research Center; 41470 Gebze Kocaeli Turkey
- Department of Chemistry; Süleyman Demirel University; 32260 Isparta Turkey
| | - Yunus Zorlu
- Department of Chemistry; Gebze Technical University; 41400 Gebze Kocaeli Turkey
| | - Tahir Tilki
- Department of Chemistry; Süleyman Demirel University; 32260 Isparta Turkey
| | - Erkan Ertürk
- Institute of Chemical Technology; TÜBITAK Marmara Research Center; 41470 Gebze Kocaeli Turkey
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8
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Wechsel R, Žabka M, Ward JW, Clayden J. Competing Hydrogen-Bond Polarities in a Dynamic Oligourea Foldamer: A Molecular Spring Torsion Balance. J Am Chem Soc 2018; 140:3528-3531. [DOI: 10.1021/jacs.8b00567] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Romina Wechsel
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Matej Žabka
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - John W. Ward
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
| | - Jonathan Clayden
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
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9
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Bosch L, Mola L, Petit E, Saladrigas M, Esteban J, Costa AM, Vilarrasa J. Formal Total Synthesis of Amphidinolide E. J Org Chem 2017; 82:11021-11034. [DOI: 10.1021/acs.joc.7b01973] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Lluís Bosch
- Organic Chemistry Section,
Facultat de Química, Universitat de Barcelona, Diagonal
645, 08028 Barcelona, Catalonia, Spain
| | - Laura Mola
- Organic Chemistry Section,
Facultat de Química, Universitat de Barcelona, Diagonal
645, 08028 Barcelona, Catalonia, Spain
| | - Elena Petit
- Organic Chemistry Section,
Facultat de Química, Universitat de Barcelona, Diagonal
645, 08028 Barcelona, Catalonia, Spain
| | - Mar Saladrigas
- Organic Chemistry Section,
Facultat de Química, Universitat de Barcelona, Diagonal
645, 08028 Barcelona, Catalonia, Spain
| | - Jorge Esteban
- Organic Chemistry Section,
Facultat de Química, Universitat de Barcelona, Diagonal
645, 08028 Barcelona, Catalonia, Spain
| | - Anna M. Costa
- Organic Chemistry Section,
Facultat de Química, Universitat de Barcelona, Diagonal
645, 08028 Barcelona, Catalonia, Spain
| | - Jaume Vilarrasa
- Organic Chemistry Section,
Facultat de Química, Universitat de Barcelona, Diagonal
645, 08028 Barcelona, Catalonia, Spain
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10
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Lansing M, Engler H, Leuther TM, Neudörfl JM, Berkessel A. Titaniumcis-1,2-Diaminocyclohexane Salalen Catalysts of Outstanding Activity and Enantioselectivity for the Asymmetric Epoxidation of Nonconjugated Terminal Olefins with Hydrogen Peroxide. ChemCatChem 2016. [DOI: 10.1002/cctc.201601154] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Markus Lansing
- Department of Chemistry, Organic Chemistry; Cologne University; Greinstrasse 4 50939 Cologne Germany
| | - Hauke Engler
- Department of Chemistry, Organic Chemistry; Cologne University; Greinstrasse 4 50939 Cologne Germany
| | - Tobias M. Leuther
- Department of Chemistry, Organic Chemistry; Cologne University; Greinstrasse 4 50939 Cologne Germany
| | - Jörg-M. Neudörfl
- Department of Chemistry, Organic Chemistry; Cologne University; Greinstrasse 4 50939 Cologne Germany
| | - Albrecht Berkessel
- Department of Chemistry, Organic Chemistry; Cologne University; Greinstrasse 4 50939 Cologne Germany
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11
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Wechsel R, Raftery J, Cavagnat D, Guichard G, Clayden J. The meso
Helix: Symmetry and Symmetry-Breaking in Dynamic Oligourea Foldamers with Reversible Hydrogen-Bond Polarity. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604496] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Romina Wechsel
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - James Raftery
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Dominique Cavagnat
- ISM, UMR CNRS 5255; Université de Bordeaux; 351 cours de la Libération 33405 Talence France
| | - Gilles Guichard
- Université de Bordeaux, CBMN, UMR 5248; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33607 Pessac France
- CNRS, CBMN, UMR 5248; 33600 Pessac France
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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12
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Wechsel R, Raftery J, Cavagnat D, Guichard G, Clayden J. The meso
Helix: Symmetry and Symmetry-Breaking in Dynamic Oligourea Foldamers with Reversible Hydrogen-Bond Polarity. Angew Chem Int Ed Engl 2016; 55:9657-61. [DOI: 10.1002/anie.201604496] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Indexed: 01/10/2023]
Affiliation(s)
- Romina Wechsel
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - James Raftery
- School of Chemistry; University of Manchester; Oxford Road Manchester M13 9PL UK
| | - Dominique Cavagnat
- ISM, UMR CNRS 5255; Université de Bordeaux; 351 cours de la Libération 33405 Talence France
| | - Gilles Guichard
- Université de Bordeaux, CBMN, UMR 5248; Institut Européen de Chimie et Biologie; 2 rue Robert Escarpit 33607 Pessac France
- CNRS, CBMN, UMR 5248; 33600 Pessac France
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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13
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Heidlindemann M, Hammel M, Scheffler U, Mahrwald R, Hummel W, Berkessel A, Gröger H. Chemoenzymatic Synthesis of Vitamin B5-Intermediate (R)-Pantolactone via Combined Asymmetric Organo- and Biocatalysis. J Org Chem 2015; 80:3387-96. [DOI: 10.1021/jo502667x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Marcel Heidlindemann
- Faculty
of Chemistry, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany
| | - Matthias Hammel
- Department
of Chemistry, University of Cologne, Greinstrasse 4, 50939 Cologne, Germany
| | - Ulf Scheffler
- Faculty
of Chemistry, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany
- Institute
of Chemistry, Humboldt University, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Rainer Mahrwald
- Institute
of Chemistry, Humboldt University, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Werner Hummel
- Institute
of Molecular Enzyme Technology, Heinrich Heine University of Düsseldorf, Research Centre Jülich, Stetternicher Forst, 52426 Jülich, Germany
| | - Albrecht Berkessel
- Department
of Chemistry, University of Cologne, Greinstrasse 4, 50939 Cologne, Germany
| | - Harald Gröger
- Faculty
of Chemistry, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany
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14
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Wang Q, Neudörfl JM, Berkessel A. Titaniumcis-1,2-Diaminocyclohexane (cis-DACH) Salalen Catalysts for the Asymmetric Epoxidation of Terminal Non-Conjugated Olefins with Hydrogen Peroxide. Chemistry 2014; 21:247-54. [DOI: 10.1002/chem.201404639] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Indexed: 11/11/2022]
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15
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16
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Berkessel A, Günther T, Wang Q, Neudörfl JM. Titan-Salalen-Katalysatoren mitcis-1,2-Diaminocyclohexan-Rückgrat: enantioselektive Epoxidierung terminaler Olefine mit H2O2. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201210198] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Berkessel A, Günther T, Wang Q, Neudörfl JM. Titanium salalen catalysts based on cis-1,2-diaminocyclohexane: enantioselective epoxidation of terminal non-conjugated olefins with H2O2. Angew Chem Int Ed Engl 2013; 52:8467-71. [PMID: 23824950 DOI: 10.1002/anie.201210198] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 03/22/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Albrecht Berkessel
- University of Cologne, Department of Chemistry, Greinstrasse 4, 50939 Cologne, Germany.
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18
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Pandey G, Dey D, Fernandes R. Scalable Synthesis of Enantiomerically Pure cis-1,2-Cyclohexanediamine Derivatives and Conformationally Rigid 7-Azabicyclo[2.2.1]heptan-2-amines. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Duangdee N, Harnying W, Rulli G, Neudörfl JM, Gröger H, Berkessel A. Highly Enantioselective Organocatalytic Trifluoromethyl Carbinol Synthesis—A Caveat on Reaction Times and Product Isolation. J Am Chem Soc 2012; 134:11196-205. [DOI: 10.1021/ja302511t] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nongnaphat Duangdee
- Department of Chemistry (Organic
Chemistry), University of Cologne, Greinstrasse
4, 50939 Cologne, Germany
| | - Wacharee Harnying
- Department of Chemistry (Organic
Chemistry), University of Cologne, Greinstrasse
4, 50939 Cologne, Germany
| | - Giuseppe Rulli
- Department of Chemistry and
Pharmacy (Organic Chemistry II), University of Erlangen-Nürnberg, Henkestr. 42, 91056 Erlangen, Germany
| | - Jörg-M. Neudörfl
- Department of Chemistry (Organic
Chemistry), University of Cologne, Greinstrasse
4, 50939 Cologne, Germany
| | - Harald Gröger
- Department of Chemistry and
Pharmacy (Organic Chemistry II), University of Erlangen-Nürnberg, Henkestr. 42, 91056 Erlangen, Germany
- Department of Chemistry (Organic
Chemistry I), Bielefeld University, Universitätsstrasse
25, 33615 Bielefeld, Germany
| | - Albrecht Berkessel
- Department of Chemistry (Organic
Chemistry), University of Cologne, Greinstrasse
4, 50939 Cologne, Germany
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20
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Min C, Mittal N, De CK, Seidel D. A dual-catalysis approach to the kinetic resolution of 1,2-diaryl-1,2-diaminoethanes. Chem Commun (Camb) 2012; 48:10853-5. [DOI: 10.1039/c2cc36361e] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Ma G, Bartoszewicz A, Ibrahem I, Córdova A. Highly Enantioselective Co-Catalytic Direct Aldol Reactions by Combination of Hydrogen-Bond Donating and Acyclic Amino Acid Catalysts. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100408] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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De CK, Seidel D. Catalytic enantioselective desymmetrization of meso-diamines: a dual small-molecule catalysis approach. J Am Chem Soc 2011; 133:14538-41. [PMID: 21863902 DOI: 10.1021/ja2060462] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The desymmetrization of meso-diamines was accomplished via enantioselective monobenzoylation facilitated by the cooperative action of two small-molecule catalysts. A chiral acyl-transfer reagent is formed in situ through the interplay of benzoic anhydride, 4-(dimethylamino)pyridine as a nucleophilic catalyst, and a chiral amide-thiourea cocatalyst.
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Affiliation(s)
- Chandra Kanta De
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
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23
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Ríos-Lombardía N, Busto E, Gotor-Fernández V, Gotor V. Chemoenzymatic Asymmetric Synthesis of Optically Active Pentane-1,5-diamine Fragments by Means of Lipase-Catalyzed Desymmetrization Transformations. J Org Chem 2011; 76:5709-18. [DOI: 10.1021/jo2007972] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Nicolás Ríos-Lombardía
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Biotecnología de Asturias, Universidad de Oviedo, 33071 Oviedo (Asturias), Spain
| | - Eduardo Busto
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Biotecnología de Asturias, Universidad de Oviedo, 33071 Oviedo (Asturias), Spain
| | - Vicente Gotor-Fernández
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Biotecnología de Asturias, Universidad de Oviedo, 33071 Oviedo (Asturias), Spain
| | - Vicente Gotor
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Biotecnología de Asturias, Universidad de Oviedo, 33071 Oviedo (Asturias), Spain
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