Preparation and solvolysis kinetics of trimethylsilyl N-alkyl-N-phenyl-carbamates
作者:R. Szalay、D. Knausz、L. Szakács、K. Újszászy、P. Sohár
DOI:10.1016/0022-328x(94)05086-q
日期:1995.2
Some trimethylsilyl esters of carbamic acids were prepared by a novel method. Their solvolysis with isopropanol was studied. UV spectrophotometry was used to monitor the reaction and the pseudo first order rate constants were determined.A reaction mechanism is suggested on the basis of the dependence of rates on the ionic strength, on the temperature, on the isotope effect and on the concentration
用一种新颖的方法制备了一些氨基甲酸的三甲基甲硅烷基酯。研究了它们在异丙醇中的溶剂分解作用。用紫外分光光度法监测反应并确定拟一级反应速率常数。根据速率对离子强度,温度,同位素效应和各种浓度的依赖性,提出了反应机理。添加剂(分别为异丙醇钠,氢氧化钠,三乙胺及其盐酸盐)。