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Soai K, Matsumoto A, Kawasaki T. Asymmetric Autocatalysis as a Link Between Crystal Chirality and Highly Enantioenriched Organic Compounds. Isr J Chem 2021. [DOI: 10.1002/ijch.202100047] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kenso Soai
- Department of Applied Chemistry Tokyo University of Science Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
- Research Organization for Nano & Life Innovation Waseda University Wasedatsurumaki-cho, Shinjuku-ku Tokyo, 162 0041 Japan
| | - Arimasa Matsumoto
- Department of Chemistry Biology and Environmental Science Nara Women's University Kita-Uoya Nishi-machi Nara 630-8506 Japan
| | - Tsuneomi Kawasaki
- Department of Applied Chemistry Tokyo University of Science Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
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Trapp O, Lamour S, Maier F, Siegle AF, Zawatzky K, Straub BF. In Situ Mass Spectrometric and Kinetic Investigations of Soai's Asymmetric Autocatalysis. Chemistry 2020; 26:15871-15880. [PMID: 32822103 PMCID: PMC7756584 DOI: 10.1002/chem.202003260] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Indexed: 01/15/2023]
Abstract
Chemical reactions that lead to a spontaneous symmetry breaking or amplification of the enantiomeric excess are of fundamental interest in explaining the formation of a homochiral world. An outstanding example is Soai's asymmetric autocatalysis, in which small enantiomeric excesses of the added product alcohol are amplified in the reaction of diisopropylzinc and pyrimidine‐5‐carbaldehydes. The exact mechanism is still in dispute due to complex reaction equilibria and elusive intermediates. In situ high‐resolution mass spectrometric measurements, detailed kinetic analyses and doping with in situ reacting reaction mixtures show the transient formation of hemiacetal complexes, which can establish an autocatalytic cycle. We propose a mechanism that explains the autocatalytic amplification involving these hemiacetal complexes. Comprehensive kinetic experiments and modelling of the hemiacetal formation and the Soai reaction allow the precise prediction of the reaction progress, the enantiomeric excess as well as the enantiomeric excess dependent time shift in the induction period. Experimental structural data give insights into the privileged properties of the pyrimidyl units and the formation of diastereomeric structures leading to an efficient amplification of even minimal enantiomeric excesses, respectively.
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Affiliation(s)
- Oliver Trapp
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377, Munich, Germany.,Max-Planck-Institute for Astronomy, Königstuhl 17, 69117, Heidelberg, Germany
| | - Saskia Lamour
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377, Munich, Germany.,Max-Planck-Institute for Astronomy, Königstuhl 17, 69117, Heidelberg, Germany
| | - Frank Maier
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Alexander F Siegle
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Kerstin Zawatzky
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377, Munich, Germany
| | - Bernd F Straub
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
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Hanopolskyi AI, Smaliak VA, Novichkov AI, Semenov SN. Autocatalysis: Kinetics, Mechanisms and Design. CHEMSYSTEMSCHEM 2020. [DOI: 10.1002/syst.202000026] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Anton I. Hanopolskyi
- Department of Organic Chemistry Weizmann Institute of Science Herzl, 234 7610001 Rehovot Israel
| | - Viktoryia A. Smaliak
- Department of Organic Chemistry Weizmann Institute of Science Herzl, 234 7610001 Rehovot Israel
| | - Alexander I. Novichkov
- Department of Organic Chemistry Weizmann Institute of Science Herzl, 234 7610001 Rehovot Israel
| | - Sergey N. Semenov
- Department of Organic Chemistry Weizmann Institute of Science Herzl, 234 7610001 Rehovot Israel
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Affiliation(s)
- María E. Noble-Terán
- Centro de Investigaciones Químicas; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001 62209 Cuernavaca Morelos Mexico
| | - José-Manuel Cruz
- Centro de Investigaciones Químicas; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001 62209 Cuernavaca Morelos Mexico
| | - Jean-Claude Micheau
- Laboratoire des IMRCP, UMR au CNRS No. 5623; Université Paul Sabatier; 118, Route de Narbonne 31062 Toulouse Cedex France
| | - Thomas Buhse
- Centro de Investigaciones Químicas; Universidad Autónoma del Estado de Morelos; Avenida Universidad 1001 62209 Cuernavaca Morelos Mexico
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