Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1991-08-29
1993-04-27
Page, Thurman K.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549247, 558415, 562849, 562853, 562855, C07D30774
Patent
active
052063917
ABSTRACT:
A process for the preparation of a halophthalic anhydride, such as chlorophthalic anhydride, comprising the liquid phase reaction of bromine with a halogen substituted hexa- or tetra-hydrophthalic anhydride to produce halophthalic anhydride and gaseous HBr, and reacting the gaseous HBr with chlorine to regenerate bromine.
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Buckholtz Harry E.
Cocoman Mary K.
Colman Edward J.
Seper Karl W.
Tang David Y.
Cookfair Arthur S.
Jones Wayne A.
Occidental Chemical Corporation
Page Thurman K.
Venkat Jyothsna
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