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Preparation of enantiomerically enriched alpha hydroxystannanes via enzymatic resolution


, : Preparation of enantiomerically enriched alpha hydroxystannanes via enzymatic resolution. Tetrahedron Letters 32(41): 5683-5686

The porcine pancreatic lipase (PPL) catalyzed esterifications of .alpha.-hydroxystannanes RCH(OH)SnMe3 (R = Me, Et) and MeCH(OH)SnEt3 with 2,2,2-trifluoroethyl valerate afford good yields and excellent enantiomeric (> 95% ee) purities of the (S)-valerate and the (R)-.alpha.-hydroxystannane.

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