Facile preparation and rearrangement of allylic dialkoxy disulfides

Allylic dialkoxy disulfides were obtained in good yields and their reactivity has been investigated. Similarly to allylic sulfoxylates, these esters undergo double [2,3]-sigmatropic rearrangement to the appropriate vic-disulfoxides. The latter, being unstable, undergoes spontaneous rearrangement to the corresponding thiosulfonates.