Theoretical studies on the aminolysis mechanism of propylene carbonate with ammonia

Verfasser / Beitragende:
[Rong Chen, Xiaoling Luo, Guoming Liang]
Ort, Verlag, Jahr:
2015
Enthalten in:
Theoretical Chemistry Accounts, 134/3(2015-03-01), 1-12
Format:
Artikel (online)
ID: 605487766
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024 7 0 |a 10.1007/s00214-015-1634-6  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00214-015-1634-6 
245 0 0 |a Theoretical studies on the aminolysis mechanism of propylene carbonate with ammonia  |h [Elektronische Daten]  |c [Rong Chen, Xiaoling Luo, Guoming Liang] 
520 3 |a The possible mechanisms of the aminolysis reaction of propylene carbonate with ammonia were investigated by computational techniques. Optimized structures for all the stationary points were examined by employing the B3LYP/6-311++G(d,p) and MP2/6-311++G(d,p) methods. The uncatalyzed, base-catalyzed and acid-catalyzed aminolysis reactions were taken into account. Two possible mechanisms of the concerted process and the addition/elimination stepwise pathway are investigated, and the first stages of the stepwise mechanism for all pathways are the rate-limiting processes. The results indicate that the concerted process of non-catalyzed aminolysis has lower energy barrier in comparison with the stepwise mechanism. Concerning the base-catalyzed and acid-catalyzed aminolysis, the neutral stepwise pathway is more favorable than the concerted mechanism and the energy barriers of all steps are lower than those of the uncatalyzed aminolysis. The solvent effect by a polarized continuum model does not significantly change the conclusion. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Aminolysis of ester  |2 nationallicence 
690 7 |a Propylene carbonate  |2 nationallicence 
690 7 |a Catalytic role  |2 nationallicence 
690 7 |a Mechanism  |2 nationallicence 
690 7 |a PCM model  |2 nationallicence 
700 1 |a Chen  |D Rong  |u College of Chemistry, Chongqing Normal University, 401331, Chongqing, China  |4 aut 
700 1 |a Luo  |D Xiaoling  |u College of Chemistry, Chongqing Normal University, 401331, Chongqing, China  |4 aut 
700 1 |a Liang  |D Guoming  |u College of Chemistry, Chongqing Normal University, 401331, Chongqing, China  |4 aut 
773 0 |t Theoretical Chemistry Accounts  |d Springer Berlin Heidelberg  |g 134/3(2015-03-01), 1-12  |x 1432-881X  |q 134:3<1  |1 2015  |2 134  |o 214 
856 4 0 |u https://doi.org/10.1007/s00214-015-1634-6  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
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/s00214-015-1634-6  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Chen  |D Rong  |u College of Chemistry, Chongqing Normal University, 401331, Chongqing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Luo  |D Xiaoling  |u College of Chemistry, Chongqing Normal University, 401331, Chongqing, China  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Liang  |D Guoming  |u College of Chemistry, Chongqing Normal University, 401331, Chongqing, China  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Theoretical Chemistry Accounts  |d Springer Berlin Heidelberg  |g 134/3(2015-03-01), 1-12  |x 1432-881X  |q 134:3<1  |1 2015  |2 134  |o 214