作者:Colin Eaborn、Foad M. S. Mahmoud
DOI:10.1039/p29810001309
日期:——
TsiSiMe2OH. The solvolysis is slower in EtOH and PriOH, and occurs only very slowly, if at all, in CF3CH2OH. The methanolysis of (Me3Si)2(Ph2MeSi)CSiMe2OClO3 is slower than that of TsiSMe2OClO3. The methanolysis of TsiSiHPhl and TsiSiHMel are also accelerated only to a small extent by NaOMe. The above results are interpreted in terms of an SN1 mechanism involving anchimerically assisted ionization of
已经对高度空间受阻化合物TsiSiMe 2 OClO 3 [Tsi =(Me 3 Si)3 C],(Me 3 Si)2(Ph 2 MeSi)CSiMe 2 OClO 3的溶剂分解(主要是甲醇分解)进行了动力学研究。,TsiSiHPhX(X = I,Br,ONO 2)和TsiSiHMel。TsiSiMe 2 OClO 3的甲醇分解速率仅增加约3。添加0.1 M NaOMe时为20%,进一步添加碱的影响较小。LiCl或LiNO 3的添加导致速率增加的幅度甚至更小,但是在LiNO 3的存在下,形成了大量的TsiSiMe 2 ONO 2,该数量大于对应于速率增加的数量。水具有非常大的促进作用,即使仅存在1体积%的水,该产品也非常主要是TsiSiMe 2 OH。溶剂分解是在EtOH和Pr较慢我OH,和只发生非常缓慢,如果在所有,在CF 3 CH 2 OH。(Me 3 Si)2(Ph 2 MeSi)CSiMe