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Gruzdev DA, Vakarov SA, Korolyova MA, Bartashevich EV, Tumashov AA, Chulakov EN, Ezhikova MA, Kodess MI, Levit GL, Krasnov VP. Acylative kinetic resolution of racemic methyl-substituted cyclic alkylamines with 2,5-dioxopyrrolidin-1-yl ( R)-2-phenoxypropanoate. Org Biomol Chem 2022; 20:862-869. [PMID: 35006228 DOI: 10.1039/d1ob02099d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The diastereoselective acylation of a number of racemic methyl-substituted cyclic alkylamines with active esters of 2-phenoxypropanoic acid was studied in detail. The ester of (R)-2-phenoxypropanoic acid and N-hydroxysuccinimide was found to be the most selective agent. The highest stereoselectivity was observed in the kinetic resolution of racemic 2-methylpiperidine in toluene at -40 °C (selectivity factor s = 73) with the predominant formation of (R,R)-amide (93.7% de). To explain the observed stereoselectivity, DFT modelling of the transition states in the reactions of the title acylating agent with 2-methylpiperidine and 2-methylpyrrolidine was performed. The calculated values were in good agreement with experimental data. It has been demonstrated that the acylation proceeds via a concerted mechanism, in which the addition of an amine occurs simultaneously with the elimination of the hydroxysuccinimide fragment. The high stereoselectivity of the (R,R)-amide formation is largely ensured by the lower steric hindrances in the transition states as compared to the formation of (R,S)-amide.
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Affiliation(s)
- Dmitry A Gruzdev
- Postovsky Institute of Organic Synthesis of RAS (Ural Branch), 22/20 S. Kovalevskoy St, Ekaterinburg 620108, Russia.
| | - Sergey A Vakarov
- Postovsky Institute of Organic Synthesis of RAS (Ural Branch), 22/20 S. Kovalevskoy St, Ekaterinburg 620108, Russia.
| | - Marina A Korolyova
- Postovsky Institute of Organic Synthesis of RAS (Ural Branch), 22/20 S. Kovalevskoy St, Ekaterinburg 620108, Russia.
| | - Ekaterina V Bartashevich
- South Ural State University (National Research University), 76 Lenina Ave., Chelyabinsk 454080, Russia
| | - Andrey A Tumashov
- Postovsky Institute of Organic Synthesis of RAS (Ural Branch), 22/20 S. Kovalevskoy St, Ekaterinburg 620108, Russia.
| | - Evgeny N Chulakov
- Postovsky Institute of Organic Synthesis of RAS (Ural Branch), 22/20 S. Kovalevskoy St, Ekaterinburg 620108, Russia.
| | - Marina A Ezhikova
- Postovsky Institute of Organic Synthesis of RAS (Ural Branch), 22/20 S. Kovalevskoy St, Ekaterinburg 620108, Russia.
| | - Mikhail I Kodess
- Postovsky Institute of Organic Synthesis of RAS (Ural Branch), 22/20 S. Kovalevskoy St, Ekaterinburg 620108, Russia.
| | - Galina L Levit
- Postovsky Institute of Organic Synthesis of RAS (Ural Branch), 22/20 S. Kovalevskoy St, Ekaterinburg 620108, Russia.
| | - Victor P Krasnov
- Postovsky Institute of Organic Synthesis of RAS (Ural Branch), 22/20 S. Kovalevskoy St, Ekaterinburg 620108, Russia.
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Adams MR, Tien CH, McDonald R, Speed AWH. Asymmetric Imine Hydroboration Catalyzed by Chiral Diazaphospholenes. Angew Chem Int Ed Engl 2017; 56:16660-16663. [DOI: 10.1002/anie.201709926] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Indexed: 01/03/2023]
Affiliation(s)
- Matt R. Adams
- Department of Chemistry; Dalhousie University; Halifax, Nova Scotia B3H 4R2 Canada
| | - Chieh-Hung Tien
- Department of Chemistry; Dalhousie University; Halifax, Nova Scotia B3H 4R2 Canada
| | - Robert McDonald
- X-ray Crystallography Laboratory; Department of Chemistry; University of Alberta; Edmonton Alberta T6G 2G2 Canada
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Adams MR, Tien CH, McDonald R, Speed AWH. Asymmetric Imine Hydroboration Catalyzed by Chiral Diazaphospholenes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709926] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Matt R. Adams
- Department of Chemistry; Dalhousie University; Halifax, Nova Scotia B3H 4R2 Canada
| | - Chieh-Hung Tien
- Department of Chemistry; Dalhousie University; Halifax, Nova Scotia B3H 4R2 Canada
| | - Robert McDonald
- X-ray Crystallography Laboratory; Department of Chemistry; University of Alberta; Edmonton Alberta T6G 2G2 Canada
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Wanner B, Kreituss I, Gutierrez O, Kozlowski MC, Bode JW. Catalytic Kinetic Resolution of Disubstituted Piperidines by Enantioselective Acylation: Synthetic Utility and Mechanistic Insights. J Am Chem Soc 2015; 137:11491-7. [PMID: 26308097 PMCID: PMC4601563 DOI: 10.1021/jacs.5b07201] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The catalytic kinetic resolution of cyclic amines with achiral N-heterocyclic carbenes and chiral hydroxamic acids has emerged as a promising method to obtain enantio-enriched amines with high selectivity factors. In this report, we describe the catalytic kinetic resolution of disubstituted piperdines with practical selectivity factors (s, up to 52) in which we uncovered an unexpected and pronounced conformational effect resulting in disparate reactivity and selectivity between the cis- and trans-substituted piperidine isomers. Detailed experimental and computational studies of the kinetic resolution of various disubstituted piperidines revealed a strong preference for the acylation of conformers in which the α-substituent occupies the axial position. This work provides further experimental and computational support for the concerted 7-member transition state model for acyl transfer reagents and expands the scope and functional group tolerance of the secondary amine kinetic resolution.
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Affiliation(s)
- Benedikt Wanner
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH-Zürich, 8093 Zürich, Switzerland
| | - Imants Kreituss
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH-Zürich, 8093 Zürich, Switzerland
| | - Osvaldo Gutierrez
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Marisa C. Kozlowski
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Jeffrey W. Bode
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH-Zürich, 8093 Zürich, Switzerland
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Mittal N, Lippert KM, De CK, Klauber EG, Emge TJ, Schreiner PR, Seidel D. A Dual-Catalysis Anion-Binding Approach to the Kinetic Resolution of Amines: Insights into the Mechanism via a Combined Experimental and Computational Study. J Am Chem Soc 2015; 137:5748-58. [DOI: 10.1021/jacs.5b00190] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Nisha Mittal
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Katharina M. Lippert
- Institute
of Organic Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 58, 35392 Giessen, Germany
| | - Chandra Kanta De
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Eric G. Klauber
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Thomas J. Emge
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Peter R. Schreiner
- Institute
of Organic Chemistry, Justus-Liebig University, Heinrich-Buff-Ring 58, 35392 Giessen, Germany
| | - Daniel Seidel
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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Cochrane EJ, Leonori D, Hassall LA, Coldham I. Synthesis and kinetic resolution of N-Boc-2-arylpiperidines. Chem Commun (Camb) 2014; 50:9910-3. [DOI: 10.1039/c4cc04576a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
An efficient kinetic resolution of 2-arylpiperidines was developed using a chiral base.
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Affiliation(s)
| | | | | | - Iain Coldham
- Department of Chemistry
- University of Sheffield
- Sheffield, UK
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