H. Lefranc et al., CHIRONS FOR POLYPROPIONATE ASSEMBLAGE - PREPARATION OF OPTICALLY-ACTIVE FUNCTIONALIZED ENOLSILANES, Synthetic communications, 27(10), 1997, pp. 1689-1695
Optically active alpha-methyl beta-hydroxy (carbamate-protected) enols
ilanes were prepared in two steps: silyloxy-allyltitanation of achiral
or chiral aldehydes was followed by the protection of the hydroxy gro
up, using respectively chiral or achiral isocyanates.