Optically active allylic tin reagent as an enantio-divergent synthon of isoprenoids via remote and divergent asymmetric induction

Article abstract of DOI:10.1016/0040-4039(95)00539-O

(S)-2-(1-Hydroxymethyl)allyltin (1a) can be prepared in high enantiomeric purity. When its methylated and acetylated derivatives are allowed to add to aldehydes with the help of i-PrOTiCl₃ and SnCl₄, syn- and anti-homoallylic alcohol