Preparation of iodoallylic alcohols via hydrostannylation: spectroscopic proof of structures

Abstract

Hydrostannylation of propargylic alcohols and ethers affords either the E- or Z-β-tributylstannylallylic alcohols and ether as the major products by the use of excess stannane or acetylenic compound, respectively; europium shift studies in the high field 1H NMR spectra are used to establish the stereochemistry. © 1982.