2,6-Disazo anthraquinone compounds

Details 2,6-Disazo anthraquinone compounds 2,6-Disazo anthraquinone compounds

1983-09-30

1985-11-26

Higel, Floyd D.

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

Organic compounds

Azo

430 58, 430 71, 430 72, 430 73, 430 75, 430 76, 430 79, 534655, 534563, C09B 3302, C09B 3502, C09B 5612, G03G 506

Patent

active

045555672

ABSTRACT:
A disazo compound having the general formula (1) ##STR1## (wherein X represents a substituted or unsubstituted aromatic ring or hetero ring, and Ar represents a substituted or unsubstituted aromatic ring or hetero ring);
a method of making said disazo compound which comprises using, as a starting material, couplers having the general formula (2) ##STR2## and the general formula (4) ##STR3## (wherein X and Ar are the same as defined above); and a multilayer type electrophotographic element using said disazo compound as a charge transfer substance.

REFERENCES:
patent: 4242260 (1980-12-01), Sasaki et al.
patent: 4349616 (1982-09-01), Sasaki

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