Process for the preparation of halophthalic anhydrides

Details Process for the preparation of halophthalic anhydrides Process for the preparation of halophthalic anhydrides

1991-06-26

1993-08-03

Tsang, Cecilia

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

558411, 558425, 568316, 20415769, 20415789, 20415793, 20415785, C07D30789, C07C25500, C07C 4500

Patent

active

052330540

ABSTRACT:
Halophthalic anhydrides are prepared by the liquid phase reaction of a brominating agent with halogen substituted hexa- or tetra-hydrophthalic anhydrides.

REFERENCES:
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patent: 4559405 (1985-12-01), Telschow
patent: 4560772 (1985-12-01), Telschow et al.
patent: 4560773 (1985-12-01), Telschow
patent: 4689179 (1987-08-01), Kaieda et al.
patent: 4792618 (1988-12-01), Bieron et al.
patent: 5003088 (1991-03-01), Spohn et al.
patent: 5049682 (1991-09-01), Tang et al.
Bergmann, J. Amer. Chem. Soc. 64, 176 (1942).
Skvarchenko, V. R. Russian Chemical Reviews, Nov. 1963 vol. 32, No. 11, pp. 571-589.
Izv. Akad Nauk SSSR, Ser. Khim (6) 1315-20, 1970 CA103 (25):214656n.
Izv. Akad Nauk SSSR, Ser. Khim (8) 1709-15, 1985 CA74 (17):87221x.

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