SELECTIVITY IN THE ACID CATALYSED REDUCTION OF CARBONYL COMPOUNDS TO ALCOHOLS BY BIS(TRIPHENYLPHOSPHINE)COPPER(I) TETRAHYDROBORATE: REDUCTION OF ALDEHYDES IN THE PRESENCE OF KETONES

Article abstract of DOI:10.1016/S0040-4039(01)92520-1

Bis(triphenylphosphine)copper(I) tetrahydroborate reduces carbonyl compounds to alcohols in the presence of acid catalysts in excellent yields with high stereoselectivity; α,β-unsaturated aldehydes are reduced regioselectively.In a mixture of an aldehyde and a ketone, an aldehyde may be reduced preferentially.