Co-pyrolysis of dimethoxymethylsilylbis(trimethylsilyl)amine and hexamethylcyclotrisiloxane. 1,3-Sigmatropic rearrangements of silaimine intermediates
作者:Samih Amine Kazoura、William P. Weber
DOI:10.1016/0022-328x(84)85162-1
日期:1984.8
N-trimethylsilylmethylmethoxysilaimine (II), which reacts with D3 to give 6-methoxy-2,2,4,4,6,8,8-heptamethyl-7-trimethylsilyl-1,3,5-trioxa-7-aza-2,4,6,8-tetrasilacyclooctane (40.5%) (III). 1,3-Sigmatropic rearrangement of a methyl group from one silyl center to the other converts II into N-methoxydimethylsilyldimethylsilaimine, which reacts with D3 to yield 2,2,4,4,6,6, 8,8-octamethyl-7-methoxydimethylsilyl-1
二甲氧基甲基甲硅烷基双(三甲基甲硅烷基)胺(I)与六甲基环三硅氧烷(D 3)在低压下进行了共热解。从I上1,2-消除三甲基甲氧基硅烷得到N-三甲基甲硅烷基甲基甲氧基甲硅烷基亚胺(II),它与D 3反应得到6-甲氧基-2,2,4,4,6,8,8-庚甲基-7-三甲基甲硅烷基-1, 3,5-三氧杂-7-氮杂-2,4,6,8-四硅环环辛烷(40.5%)(III)。甲基从一个甲硅烷基中心到另一个甲硅烷基的1,3-σ重排将II转化为N-甲氧基二甲基甲硅烷基二甲基甲硅烷基胺,它与D 3反应得到2,2,4,4,6,6,8,8-八甲基-7-甲氧基二甲基甲硅烷基-1,3,5-三氧杂-4-7-氮杂-2,4,6,8-四硅环辛烷(19.5% )(IV)。III和D 3的共热解得到1-氮杂2,2,2,4,4,6,6,8,10,10,12,12,14,14-三苯甲基3,5,7,9,11 ,13-hexaoxa-2,4,6