Received mm-dd-yyyy Accepted mm-dd-yyyy Published on line mm-dd-yyyy Dates to be inserted by editorial office Abstract α-Heterosubstituted silyl derivatives, such as phenylthio-, phenylselenoand benzotriazolyl-stannyl silanes, react with aldehydes under TBAF catalysis, leading to α-substituted-β-hydroxy stannanes, able to behave as precursors of Zand E-olefins, generated by deoxystannylation. This