groups attached to the 2- and 5-positions with one equivalent of KOtBu did not result in the expected silanide formation but yielded a silole allylic anion instead. The initially formed silanide added to a neighboring phenyl group, which then transfers a proton to the 2-position of the silole ring.
3,4-二苯基
硅烷与连接到 2 位和 5 位的两个新戊
硅烷基与 1 当量 KO t Bu 的反应不会导致预期的
硅烷化物形成,而是产生了 silole 烯丙基阴离子。最初形成的
硅烷化物添加到相邻的苯基上,然后将质子转移到 silole 环的 2 位。