Compounds [(CH3)3Si]nCBr4-n (n=1,2,3) have been prepared by silylation of the corresponding Li-carbenoids. (CH3)3SiCBr2Li and (CH3)3Si 2CBrLi are stable at −100°. Rapid ligand exchanges are reported between the former and (CH3)3SiCBr3 and between the latter and LiCBr3.
化合物[(CH 3)3 Si] n CBr 4-n(n = 1,2,3)是通过相应的Li-类
胡萝卜素甲
硅烷基化制备的。(CH 3)3 SiCBr 2 Li和(CH 3)3 Si 2 CBrLi在-100°下稳定。据报道,前者与(CH 3)3 SiCBr 3之间以及后者与LiCBr 3之间快速的
配体交换。