作者:Zygmunt Lasocki、Małgorzata Witekowa
DOI:10.1016/0022-328x(91)80098-5
日期:1991.1
The solvolysis of N-phenyl-1,1,3,3,5,5,7,7-octamethyl-1,3,5,7-tetrasila-2-aza-4,6,8-trioxacyclooctane (I) and N,N′-diphenyl-1,1,3,3,5,5,7,7-octamethyl-1,3,5,7-tetrasila-2,6-diaza-4,8-dioxacyclooctane (II) in methanol/water in the presence of an acetate buffer is a pseudo-first-order process, subject to general acid-catalysis. The catalytic rate constants have been determined spectrophotometrically
N-苯基-1,1,3,3,5,5,7,7-八甲基-1,3,5,7-四硅-2-氮杂-4,6,8-三氧杂环辛烷的溶剂分解(I)和N,N'-二苯基-1,1,3,3,5,5,7,7-八甲基-1,3,5,7-四硅-2,6-二氮杂-4,8-二氧杂环辛烷(II)在乙酸盐缓冲液存在下的甲醇/水是拟一级反应过程,需要进行一般的酸催化。已用分光光度法测定了I的溶剂分解的催化速率常数。环的裂解比类似的六元环硅氮烷慢,但催化方式和溶剂同位素效应表明六和八的溶剂分解之间的机理相似。环