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US 4,400,566 AGranted
Reduction of organic halides
AssigneeUnion Carbide Corporation
InventorIsmael Colon
Life of this patent
Estimating the term…
Abstract
Organic halides are reduced to a dechlorinated products with a catalyst mixture consisting essentially of a nickel compound, a triarylphosphine and a halide ion, in the presence of reducing means for maintaining nickel in the zero valent state.
Claims22
Method of reducing organic halides free of nitro substituents which comprises contacting said organic halides in a solvent under an inert atmosphere with a catalytic amount of a catalytic mixture consisting essentially of:
- (1) a nickel compound containing no radicals in which N and O are bonded directly to each other;
- and
- (2) a triarylphosphine having 6 to about 24 carbons in each aryl moiety, in the presence of reducing means for maintaining nickel in the zero valence state, at a temperature of up about 250.degree. C., wherein the ratio of triarylphosphine to nickel is at least about 0.1.
Dependencies are inferred from the claim text.