Mechanism of the hydrolysis of α-(p-nitrophenyl)cinnamonitrile derivatives

被引：0
|
作者：
Pyun, S.-Y. [1 ]
Kim, T.-R.
Kwon, H.-S.
Lee, S.-H.
机构：
[1] Pukyong Natl Univ, Dept Chem, Pusan 608739, South Korea
[2] Korea Univ, Dept Chem, Seoul 136701, South Korea
[3] Chungbuk Natl Univ, Coll Educ, Korea Dept Chem Educ, Chonju 360763, South Korea
[4] Pukyong Natl Univ, Dept Chem Engn, Pusan 608739, South Korea
来源：
KINETICS AND CATALYSIS | 2007年 / 48卷 / 05期
关键词：
D O I：
10.1134/S0023158407050047
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The rate constant hydrolysis of alpha-(p-nitrophenyl)cinnamonitrile(NCPN) and its derivatives have been determined at various pH, and the rate equation which can be applied over a wide pH range is obtained. On the basis of the rate equation, hydrolysis product, general base, and substituent effects, a plausible mechanism of hydrolysis has been proposed: At pH < 4.0, the hydrolysis was initiated by the addition of water to beta-carbon of the carbon-carbon double bond. At pH > 8.5, the addition of hydroxide ion to the double bond was rate controlling. In the range of pH 4.0-8.5, these two reactions occurred competitively.
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页码：626 / 631
页数：6
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