Intermediates to tetrabromophthalic anhydride and process theref

Details Intermediates to tetrabromophthalic anhydride and process theref Intermediates to tetrabromophthalic anhydride and process theref

1991-12-10

1993-07-06

Tsang, Cecilia

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549247, 549254, 549256, 549257, C07D30789

Patent

active

052255735

ABSTRACT:
Tetrabromophthalic anhydride and the corresponding free acid are propared by oxidizing in the liquid phase a compound of the formula ##STR1## each of A and A' is independently selected from oxygen, OH or acetoxy; each of R and R' is independently selected from H, OH, alkyl, alkylidene or oxygen;

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