Halo-oxydiphthalic anhydrides

Details Halo-oxydiphthalic anhydrides Halo-oxydiphthalic anhydrides

1989-05-15

1990-07-24

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549234, C07D30789, C07D31924

Patent

active

049436422

ABSTRACT:
Novel halo-oxydiphthalic anhydrides are of the formula ##STR1## where X is F, Cl, Br, or I; X' is H, F, Cl, Br, or I.

REFERENCES:
patent: 4697023 (1987-09-01), Schwartz et al.
patent: 4808731 (1989-02-01), Berdahl et al.
patent: 4837404 (1989-06-01), Schwartz
Tiltina et al., Chemical Abstracts, vol. 95 (1981), 167989c.

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