Bulk dyeing using quinophthalone dyestuffs

Details Bulk dyeing using quinophthalone dyestuffs Bulk dyeing using quinophthalone dyestuffs

1998-09-15

1999-07-13

Davis, Zinna Northington

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5976

Patent

active

059229047

ABSTRACT:
Benzoyl phthalic acids of the formula ##STR1## useful as intermediates in the preparation of quinophthalone dyestuffs.

REFERENCES:
patent: 4235787 (1980-11-01), Schulz et al.
patent: 5037799 (1991-08-01), Chapman et al.
Abstract (WPAT) 84-237836/39 of DE 1569672A (Jan. 21, 1971).
Chemical Abstracts, vol. 86, No. 12, abstract No. 74331f, p. 86 (1977) Abstract of JP 7692371.
Derwent Abstracts, Abstract No. 35055U/25, abstract of JP 51092371 (Aug. 13, 1976).
Derwent Abstracts, Abstract No. 86-098703/15, abstract of JP 61044956 (Mar. 4, 1986).

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