Disazo compounds derived from 3,6-bis(styryl)-9-ethylcarbazole

Details Disazo compounds derived from 3,6-bis(styryl)-9-ethylcarbazole Disazo compounds derived from 3,6-bis(styryl)-9-ethylcarbazole

1980-05-20

1981-10-06

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260141, 260164, 260315, C09B 3524, C09B 3534

Patent

active

042934923

ABSTRACT:
The present invention provides disazo compounds expressed by the general formula: ##STR1## [wherein A represents a member selected from the group consisting of ##STR2## (wherein X represents a member selected from the group consisting of aromatic rings such as benzene ring, naphthalene ring, etc., hetero rings such as indole ring, carbazole ring, benzofuran ring, etc. and their substituents, Ar.sub.1 represents a member selected from the group consisting of aromatic rings such as benzene ring, naphthalene ring, etc., hetero rings such as dibenzofuran ring, etc. and their substituents, Ar.sub.2 and Ar.sub.3 represent a member selected from the group consisting of aromatic rings such as benzene ring, naphthalene ring, etc. and their substituents, R.sub.1 and R.sub.3 represent a member selected from the group consisting of hydrogen, lower alkyl radical or phenyl radical and their substituents and R.sub.2 represents a member selected from the group consisting of lower alkyl radical, carboxyl radical and their esters)]; a process for the preparation of said compounds; and electrophotographic sensitive materials having a high sensitivity as well as a high flexibility which comprise a conductive support and a photosensitive layer formed thereon, said photosensitive layer containing said disazo compound as an effective ingredient.

REFERENCES:
patent: 2774755 (1956-12-01), Schmid et al.
patent: 2897186 (1959-07-01), Miller et al.
patent: 3966703 (1976-06-01), Bleck et al.
patent: 3984199 (1976-10-01), Heinrich et al.

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