EVIDENCE OF POLAR EFFECTS OF SUBSTITUENTS IN THE GAS-PHASE UNIMOLECULAR ELIMINATION OF BETA-SUBSTITUTED ETHYL CHLORIDES PYROLYSIS OF 3-CHLORO-2-METHYLPROPIONITRILE

被引：4

作者：

CHUCHANI, G

ROTINOV, A

机构：

[1] Centro de Quimica, Instituto Venezolano de Investigaciones Cientificas, Caracas

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 1979年 / 12卷 / 03期

关键词：

D O I：

10.1007/BF02064265

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 gas phase pyrolysis of 3-chloro-2-methylpropionitrile has been investigated in a static system over the temperature range of 460.1-489.9°C and pressure range of 66-231 Torr. The reaction is homogeneous, unimolecular, and obeys a first-order rate law. The study of this compound is to establish whether steric and/or polar factors affect the rate of HCl elimination in β-substituted ethyl chlorides. The β-cyano group has a retarding effect and the electronic factors are of paramount importance in the velocity of elimination of primary halides. This work confirms that polarization of the C-Cl bond is the rate-determining event in the gas phase pyrolysis of alkyl chlorides. © 1979 Akadémiai Kiadó.

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页码：333 / 338

页数：6

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