[1,5]-Anion relay/[2,3]-Wittig rearrangement of 3,3-bis(silyl) allyl enol ethers: synthesis of useful vinyl bis(silane) species.

The [1,5]-anion relay/[2,3]-Wittig rearrangement of 3,3-bis(silyl) enol allyl ethers has been developed. This reaction provides an efficient method to synthesize versatile vinyl bissilanes, which can be transformed into trisubstituted vinylsilanes through a [1,4]-Brook rearrangement/alkylation protocol using a wide range of electrophiles.