R. Caputo et al., CHEMISTRY OF ETHANEDIYL S,S-ACETALS .9. ASYMMETRIC-SYNTHESIS OF CHIRAL CIS ALLYLIC ALCOHOLS, Synthetic communications, 25(10), 1995, pp. 1517-1522
(2Z,1S)-1,3-diphenyl-2-propenol (3) is obtained from the chiral 5,6-di
hydro-1,4-dithiin Ib in two steps and 60% enantiomeric excess. Combini
ng our previously reported stereoselective double bond formation and t
his 1,4 asymmetric induction introduces a new route to chiral allylic
alcohols with cis geometry from simple aldehydes and methyl ketones.