Novel 1,3,4-tri-(het-)aryl-isoquinolines, process for their prep

Details Novel 1,3,4-tri-(het-)aryl-isoquinolines, process for their prep Novel 1,3,4-tri-(het-)aryl-isoquinolines, process for their prep

1986-06-27

1988-10-11

Welsh, J. David

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

430 57, G03G 506

Patent

active

047771429

ABSTRACT:
The invention relates to 1,3,4-tri-(het-)-aryl-isoquinoline photoconductive compounds represented by the formula: ##STR1## wherein R.sub.1 and R.sub.2 are identical or different and each denotes di(C.sub.1 to C.sub.4)alkylaminophenyl, julolidyl or aminophenyl, with the nitrogen atom being part of a heterocyclic, 5- or 6-membered ring; R.sub.3 denotes (i) a group selected from phenyl, a more highly aggregated hydrocarbon and phenylene, which group is optionally substituted by at least one halogen, nitro group, mono- or di(C.sub.1 to C.sub.4)alkylamino group, mono- or diarylamino group, (C.sub.1 to C.sub.4) alkyl group or (C.sub.1 to C.sub.4)alkoxy group, methylene-dioxy group, amino(C.sub.1 to C.sub.4)alkyl group or sulfonamido group, or (ii) denotes a 5- or 6-membered heterocyclic ring which contains nitrogen, oxygen or sulphur and is optionally substituted; and n denotes 1 or 2. The isoquinolines are obtained by reacting appropriate diketones with aromatic aminomethyl compounds in a basic condensation medium. The isoquinolines of formula (I) possess excellent photoconductive properties.

REFERENCES:
patent: 3257203 (1966-06-01), Sues et al.
patent: 4251609 (1981-02-01), Nonnemacher
Chem. Ber., 71, 64 (1938) W. Krabbe et al.
J. Org. Chem., 37, 2508 (1972) V. Nair.
Heterocycles, 14, 789 (1980) Sh. Mataka et al.
A.CH. 19, 297 (1910) A. Guyot and A. Haller.

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