Lipase mediated resolution of chiral (E)-vinylsilanes: an improved procedure for the production of (R)- and (S)-(E)-1-trialkylsilyl-1-buten-3-ol derivatives

A crude enzymic extract of Pseudomonas AK in pentane catalyzes the transesterification of chiral (E)-vinylsilanes 1, resulting in the production of highly enantiomerically enriched (R)- and (S)-(E)-1-trialkylsilyl-1-buten-3-ol derivatives (S)-2 and (R)-3. A series of related vinylsilanes and two-different lipases have been screened to identify optimal reaction conditions.