Process for the production of substituted aromatic hydrocarbons

Details Process for the production of substituted aromatic hydrocarbons Process for the production of substituted aromatic hydrocarbons

1995-01-12

1997-10-21

Myers, Helane

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

From nonhydrocarbon feed

585408, C07C 120

Patent

active

056798792

ABSTRACT:
Substituted aromatic hydrocarbons, e.g. 1,3-difluorobenzene, are produced by dediazoniation of the corresponding aromatic primary amines by converting them into a corresponding diazonium salt in the presence of hypophosphorous acid and a metal catalyst so that the diazonium group is replaced by hydrogen as it is formed.

REFERENCES:
patent: 3707562 (1972-12-01), Schindler
patent: 3894107 (1975-07-01), Butter et al.
patent: 4508784 (1985-04-01), Gugliemetti
patent: 4577046 (1986-03-01), Hylarides et al.
patent: 5475176 (1995-12-01), Beller et al.

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