ORGANOPHOSPHORUS HERBICIDES AND PLANT-GROWTH REGULATORS .1. SYNTHESIS AND PROTONATION BEHAVIOR OF GLYPHOSATE AND RELATED-COMPOUNDS

被引：22
作者：
DHANSAY, MA [1 ]
LINDER, PW [1 ]
TORRINGTON, RG [1 ]
MODRO, TA [1 ]
机构：
[1] UNIV PRETORIA,DEPT CHEM,PRETORIA 0002,SOUTH AFRICA
来源：
JOURNAL OF PHYSICAL ORGANIC CHEMISTRY | 1990年 / 3卷 / 04期
关键词：
D O I：
10.1002/poc.610030407
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Ionization constants of N‐phosphonomethylglycine (glyphosate) and three structurally related plant‐growth regulators were determined by potentiometric titration. The effect of pD on the chemical shifts of the 1H and 13C nuclei of the methylene groups and of the 31P nucleus in these substrates was measured by NMR spectroscopy. The results allowed an assignment to be made of a specific site (carboxylic, phosphonic, ammonium) in the molecule to each of the determined pKa values. Copyright © 1990 John Wiley & Sons Ltd.
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页码：248 / 254
页数：7
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