作者:Alain Chénedé、Ian Fleming、Roger Salmon、Mark C West
DOI:10.1016/s0022-328x(03)00548-5
日期:2003.11
1,1-Disilylcarbinols having two alkyl groups on the adjacent carbon atom react with thionyl chloride in sulfur dioxide to give the product in which one of the alkyl groups has migrated towards the two silyl groups, and one of the silyl groups has been removed from the resultant cation. The reaction is seen in ring-expansion, as in the conversion of cyclohexylbis[dimethyl(phenyl)silyl]carbinol (7) into
在相邻碳原子上具有两个烷基的1,1-二甲硅烷基甲醇与二氧化硫中的亚硫酰氯反应,生成一种产物,其中一个烷基向两个甲硅烷基迁移,并且一个甲硅烷基已从产生的阳离子。该反应见于环扩环,如环己基双[二甲基(苯基)甲硅烷基]甲醇(7)向1-二甲基(苯基)甲硅烷基环庚烯(11)的转化,以及开链中如1的转化,将1-双[二甲基(苯基)甲硅烷基] -2-甲基丙醇(26)制成(E)-和(Z)-2-二甲基(苯基)甲硅烷基丁-2-烯(27)。苯基二甲基甲硅烷基锂与频哪酮反应生成α-甲硅烷基甲醇(44),其以相同方式重排以得到2,3-二甲基丁-2-烯(46),有效地实现了频哪醇酮到频哪醇的重排。