Process for the preparation of 4-bromophthalic anhydride

Details Process for the preparation of 4-bromophthalic anhydride Process for the preparation of 4-bromophthalic anhydride

1989-11-20

1990-10-09

Shah, Mukund J.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549247, 549307, C07D30777

Patent

active

049622064

ABSTRACT:
A process for the production of 4-bromophthalic anhydride which comprises the reaction of 4-chlorotetrahydrophthalic anhydride with elemental bromine, in the presence of a catalytically effective amount of iron or an iron salt is disclosed.

REFERENCES:
patent: 2558862 (1951-07-01), Liston et al.
patent: 4559405 (1985-12-01), Telschow
patent: 4560773 (1985-12-01), Telschow
patent: 4709056 (1987-11-01), Catter et al.

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