Method for producing branched carbonylation products from alpha

Details Method for producing branched carbonylation products from alpha Method for producing branched carbonylation products from alpha

1982-03-24

1986-09-16

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

2604109R, 260413, 560233, C07C 5114, C07C 6738

Patent

active

046123903

ABSTRACT:
A novel method for producing branched carboxylic acids or esters from alpha-unsaturated olefins is disclosed. Such olefins are reacted with a novel, sterically hindered, ortho substituted phenylphosphine palladium halide catalysts in the presence of water or primary or secondary alcohols to produce high branched end product yields. Such catalysts have phosphine ligand cone angles of between about 170.degree. and 180.degree.. Tris(o-methoxyphenyl)phosphine palladium halide and o-trifluoromethylphenyldiphenylphosphine palladium halide catalysts are preferred.

REFERENCES:
patent: 4257973 (1981-03-01), Mrowca
patent: 4292437 (1981-09-01), Squire et al.
Tolman, C. A., Chemical Reviews, 77:3, pp. 313-348, (1977).

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