Preparation of aromatic aldehydes

Details Preparation of aromatic aldehydes Preparation of aromatic aldehydes

1987-04-28

1990-12-18

Lone, Werren B.

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

Organic compounds

Oxygen containing

546298, 568429, 568451, 568454, C07C 4549

Patent

active

049788019

ABSTRACT:
Aromatic aldehydes are more efficiently produced by reacting carbon monoxide/hydrogen admixture with an aromatic halide in the presence of a noble metal-based catalyst, a tertiary nitrogenous based and, if necessary, a noble metal complexing agent, e.g., a phosphine or phosphite, wherein the CO/H.sub.2 ratio is less than 1.

REFERENCES:
patent: 3960932 (1976-06-01), Heck
patent: 4338467 (1982-07-01), Takano et al.
patent: 4536344 (1985-08-01), Fiedler et al.
patent: 4605749 (1986-08-01), Buchmann et al.
patent: 4613702 (1986-09-01), Leconte

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