HYDROLYSIS OF THE WILD OAT HERBICIDES FLAMPROP-METHYL, FLAMPROP-ETHYL, FLAMPROP-ISOPROPYL AND BENZOYLPROP-ETHYL

被引：5

作者：

GRAYSON, BT

STOKES, S

机构：

[1] Shell Research Limited, Shell Biosciences Laboratory, Sittingbourne Research Centre, Sittingbourne, Kent

来源：

PESTICIDE SCIENCE | 1978年 / 9卷 / 06期

关键词：

D O I：

10.1002/ps.2780090616

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Kinetic measurements of the hydrolysis rates of flamprop‐methyl, flamprop‐ethyl,a flamprop‐isopropyl and benzoylprop‐ethyl have been carried out and the hydrolysis products analysed. The similarity of the data to that obtained from the hydrolysis of alkyl acetates show that these esters are hydrolysed by bimolecular acyl bond fission in both acidic and basic media. No buffer or salt effects on the rates were observed. The hydroxyl ion rates were approximately 10000 times faster than the protoncatalysed rates, so that optimum stability is found in solutions of pH 4. Equations are given to calculate hydrolysis rates when the pH exceeds 4 at ambient temperatures. Copyright © 1978 John Wiley & Sons, Ltd

引用

页码：595 / 602

页数：8