4-substituted amido-8-disubstituted aminoimidazophenoxazines

Details 4-substituted amido-8-disubstituted aminoimidazophenoxazines 4-substituted amido-8-disubstituted aminoimidazophenoxazines

1985-09-03

1986-08-05

Raymond, Richard L.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

C07D27930

Patent

active

046044620

ABSTRACT:
4-(N-Acylamino)-8-(N-R.sup.1 -N-R.sup.2 -amino)imidazophenoxazines useful as color formers, particularly in electrochromic recording systems, are prepared by the interaction of the corresponding 1,3-diamino-7-(N-R.sup.1 -N-R.sup.2 -amino)phenooxazinium halide with a reducing agent to obtain the corresponding leuco compound and subsequently interacting the leuco compound with at least two molecular proportions of an acylating agent.

REFERENCES:
patent: 2909520 (1959-10-01), Buc
patent: 4309255 (1982-01-01), Gendler et al.
Mariga & Oda, Kogyo Kagaku Zasshi 67(7), 1050-4 (1964) (C.A. 62 2852b).

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