Stochastic and empirical models of the absolute asymmetric synthesis by the Soai-autocatalysis

Verfasser / Beitragende:
[Béla Barabás, Claudia Zucchi, Marco Maioli, Károly Micskei, Gyula Pályi]
Ort, Verlag, Jahr:
2015
Enthalten in:
Journal of Molecular Modeling, 21/2(2015-02-01), 1-13
Format:
Artikel (online)
ID: 605513546
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024 7 0 |a 10.1007/s00894-015-2576-6  |2 doi 
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245 0 0 |a Stochastic and empirical models of the absolute asymmetric synthesis by the Soai-autocatalysis  |h [Elektronische Daten]  |c [Béla Barabás, Claudia Zucchi, Marco Maioli, Károly Micskei, Gyula Pályi] 
520 3 |a Absolute asymmetric synthesis (AAS) is the preparation of pure (or excess of one) enantiomer of a chiral compound from achiral precursor(s) by a chemical reaction, without enantiopure chiral additive and/or without applied asymmetric physical field. Only one well-characterized example of AAS is known today: the Soai-autocatalysis. In an attempt at clarification of the mechanism of this particular reaction we have undertaken empirical and stochastic analysis of several parallel AAS experiments. Our results show that the initial steps of the reaction might be controlled by simple normal distribution ("coin tossing”) formalism. Advanced stages of the reaction, however, appear to be of a more complicated nature. Symmetric beta distribution formalism could not be brought into correspondence with the experimental observations. A bimodal beta distribution algorithm provided suitable agreement with the experimental data. The parameters of this bimodal beta function were determined by a Pólya-urn experiment (simulated by computer). Interestingly, parameters of the resulting bimodal beta function give a golden section ratio. These results show, that in this highly interesting autocatalysis two or even perhaps three catalytic cycles are cooperating. An attempt at constructing a "designed” Soai-type reaction system has also been made. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Absolute asymmetric synthesis  |2 nationallicence 
690 7 |a Asymmetric autocatalysis  |2 nationallicence 
690 7 |a Empirical models  |2 nationallicence 
690 7 |a Soai reaction  |2 nationallicence 
690 7 |a Stochastic models  |2 nationallicence 
700 1 |a Barabás  |D Béla  |u Institute of Mathematics, University of Technology and Economics of Budapest, Műegyetem rkp. 3/H, 1111, Budapest, Hungary  |4 aut 
700 1 |a Zucchi  |D Claudia  |u Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 183, 41125, Modena, Italy  |4 aut 
700 1 |a Maioli  |D Marco  |u Department of Mathematics, University of Modena and Reggio Emilia, Via Campi 213, 41125, Modena, Italy  |4 aut 
700 1 |a Micskei  |D Károly  |u Institute of Chemistry, University of Debrecen, Egyetem ter 1, 4032, Debrecen, Hungary  |4 aut 
700 1 |a Pályi  |D Gyula  |u Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 183, 41125, Modena, Italy  |4 aut 
773 0 |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/2(2015-02-01), 1-13  |x 1610-2940  |q 21:2<1  |1 2015  |2 21  |o 894 
856 4 0 |u https://doi.org/10.1007/s00894-015-2576-6  |q text/html  |z Onlinezugriff via DOI 
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900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00894-015-2576-6  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Barabás  |D Béla  |u Institute of Mathematics, University of Technology and Economics of Budapest, Műegyetem rkp. 3/H, 1111, Budapest, Hungary  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Zucchi  |D Claudia  |u Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 183, 41125, Modena, Italy  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Maioli  |D Marco  |u Department of Mathematics, University of Modena and Reggio Emilia, Via Campi 213, 41125, Modena, Italy  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Micskei  |D Károly  |u Institute of Chemistry, University of Debrecen, Egyetem ter 1, 4032, Debrecen, Hungary  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Pályi  |D Gyula  |u Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 183, 41125, Modena, Italy  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Journal of Molecular Modeling  |d Springer Berlin Heidelberg  |g 21/2(2015-02-01), 1-13  |x 1610-2940  |q 21:2<1  |1 2015  |2 21  |o 894