在咪唑作为催化剂的存在下,硅烷硫醇R 3 SiSH通过与醛和带有携带吸电子取代基的酮加成反应而得到α-甲硅烷氧基链烷硫醇R 1 R 2 C(SH)OSiR 3。将硅烷硫醇非对映选择性地添加到对映纯的醛或酮中提供了一条方便的途径来制备纯手性的α-甲硅烷氧基烷硫醇R 1 R 2 C *(SH)OSiR 3。
Preparation of silanethiols by reaction of silanes with triphenylphosphine sulfide and with alkanethiols
作者:Yudong Cai、Brian P Roberts
DOI:10.1016/s0040-4039(01)00801-2
日期:2001.7
Silanes react with triphenylphosphine sulfide by a radical-chain mechanism to give the corresponding silanethiols in good yield. Silanethiols are similarly formed when silanes react with tert-dodecanethiol. Enantiomerically pure (S)-ButMePhSiH gave racemic silanethiol with Ph3PS, but with tert-dodecanethiol silanethiol with an ee up to 60% has been obtained, although in low chemical yield.