PROCESS FOR PRODUCTION OF PHOSPHINE-BORANE COMPLEXES

摘要

A process for the production of phosphine-borane complexes represented by the general formula:
or salts thereof: [wherein R 1 , R 2 and R 3 are each independently a hydrogen atom, a halogen atom, an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl group, or an optionally substituted heterocyclic group (with the proviso that R 1 and R 2 together with the adjacent phosphorus atom may form a 4- to 6-membered ring)], characterized by converting a compound represented by the general formula:
in a solvent in the presence of a borane reagent: [wherein each symbol is as defined above].