Silyl enol ethers of esters, ketones, as well as allylstannane and allylsilanes react with sulfur dioxide activated with t-BuMe2SiOSO2CF3 to give silyl sulfinates that can be reacted in the same pot with a variety of electrophiles generating the corresponding polyfunctional sulfones. The silyl sulfinate intermediates are formed via ene-reactions following probably concerted mechanisms.
酯、酮的
硅烯醇醚,以及烯丙基
锡和烯丙基
硅烷在用t-BuMe2SiOSO2CF3活化的
二氧化硫作用下反应生成
硅烷亚砜盐,这些亚砜盐可以与多种电亲体在同一反应锅中反应,生成相应的多功能磺烷。
硅烷亚砜盐中间体通过ene反应形成,可能遵循协同机制。