by Brønsted acids is reported. Two possible reaction pathways are described. Deprotonation results in silyl dienes with yields from 52% to 92%. Intramolecular Friedel–Crafts reactions of aryl-substituted systems give access to silyl indenes with yields of 18–90% depending on the substitution pattern. The obtained products have been shown to react as alkenyl silanes in Hiyama coupling and electrophilic
报道了一种由布朗斯台德酸通过1,2-甲
硅烷基转移由炔丙基
硅烷产生烯丙基碳鎓离子的一般方法。描述了两种可能的反应途径。去质子化产生甲
硅烷基二烯,产率为52%至92%。芳基取代体系的分子内Friedel-Crafts反应可得到甲
硅烷基
茚满,根据取代方式的不同,收率可达18-90%。已证明所获得的产物在Hiyama偶联和亲电取代反应中作为烯基
硅烷反应,在Diels-Alder环加成反应中作为二烯反应。