Chromogenic quinazolines

Details Chromogenic quinazolines Chromogenic quinazolines

1986-08-27

1988-08-23

Raymond, Richard L.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544 62, 544 74, 544 79, 544105, 544116, 544119, 544284, 544287, 544289, C07D23726

Patent

active

047662115

ABSTRACT:
Chromogenic quinazolines of formula ##STR1## wherein R is an aryl radical or a heterocyclic radical,

REFERENCES:
patent: 4435003 (1984-03-01), Fletcher
patent: 4480096 (1984-10-01), Fletcher
patent: 4555569 (1985-11-01), Zink et al.
patent: 4625027 (1986-11-01), Zink et al.
patent: 4668966 (1987-05-01), Zink et al.
Manhas et al., Chemical Abstracts, vol. 91 (1979), 157681z.

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