Preparation of 2-zincio-l,3-dithianes and di(l,3-dithian-2-yl)zinc and their reaction with highly functionalized halides and a,/?-unsaturated carbonyl compounds

Article abstract of DOI:10.1055/s-1997-1324

The title compounds were obtained by simple transmetallation of the corresponding lithium derivatives with ZnCl2 or ZnBr2. Contrary to 2-lithio-l,3-dithianes, 2-zincio-l,3-dithianes can react with a number of electrophiles bearing reactive functional grou