Highly Efficient Cleavage of Epoxides Catalyzed by B(C6F5)3.

A highly effective protocol for ring opening of epoxides with allyl and propargyl alcohols, aniline and thiophenol in the presence of catalytic amounts of B(C 6 F 5 ) 3 has been developed. Benzyl, tetrahydropyranyl, tert-butyldimethyl silyl protecting groups were stable under the reaction conditions.