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Definitive evidence for a stepwise mechanism: A downward curvature in the plot of k(obs) versus amine concentrations in aminolysis reactions of dibenzo[1,2]oxathiin-6-oxide

Title
Definitive evidence for a stepwise mechanism: A downward curvature in the plot of k(obs) versus amine concentrations in aminolysis reactions of dibenzo[1,2]oxathiin-6-oxide
Authors
Um I.-H.Lee H.-W.Park J.-Y.
Ewha Authors
엄익환박종윤
SCOPUS Author ID
엄익환scopusscopus; 박종윤scopus
Issue Date
1999
Journal Title
Tetrahedron Letters
ISSN
0040-4039JCR Link
Citation
vol. 40, no. 50, pp. 8901 - 8904
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Pseudo-first-order rate constants (k(obs)) have been measured spectrophotometrically for aminolyses of dibenzo[1,2]oxathiin-6-oxide. The plot of k(obs) vs amine concentrations exhibits a downward curvature which levels off as the amine concentration increases. Such a downward curvature is proposed as definitive evidence for a stepwise mechanism, which is supported by the microscopic rate constants determined.
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자연과학대학 > 화학·나노과학전공 > Journal papers
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