Stereoselective introduction of chiral centres in acylic precursors: a probe into the transition state for V5+-catalyzed t-butylhydroperoxide (TBHP) epoxidation of acyclic allylic alcohols and its synthetic implications.
(Z)-1-Silyl-2-stannylethenes were stereoselectively synthesized by silastannation of ethyne, catalyzed by a palladium/tert-alkyl isocyanide catalyst, and the synthetic utilities were demonstrated by their transformations.