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Acid dissociation constants of phenols and reaction mechanism for the reactions of substituted phenyl benzoates with phenoxide anions in absolute ethanol

✍ Scribed by Ik-Hwan Um; Yeon-Ju Hong; Dong-Sook Kwon

Publisher: Elsevier Science
Year: 1997
Tongue: French
Weight: 506 KB
Volume: 53
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(97)00227-5

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✦ Synopsis

Acid dissociation constants of 10 substituted phenols have been measured by a kinetic method together with second-order rate constants for the reactions of aryl benzoates (X-"'Cd-hCO-OCdh-Y) with Z-substituted phenoxide (Z-Cdq40) and EtO in absolute ethanol at 25.0+-0.1°C. The kinetic results support a stepwise mechanism flJr the present acyl-transfer reaction.

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