Abstract

Regioselective ring-openings of epoxy alcohols bearing a diphenylphosphinoyl ( Ph2PO ) group give diols which can undergo stereospecific Horner–Wittig elimination. This method was used to make allylic alcohols, unsaturated β-hydroxy sulfides, homoallylic alcohols and unsaturated amino acids, with control over their absolute (R,S), relative (syn,anti) and geometrical (E,Z) stereochemistry.

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