| 摘要 |
The invention relates to 1,3,4-tri-(het-)-aryl-isoquinoline photoconductive compounds represented by the formula: <IMAGE> (I) wherein R1 and R2 are identical or different and each denotes di(C1 to C4)alkylaminophenyl, julolidyl or aminophenyl, with the nitrogen atom being part of a heterocyclic, 5- or 6-membered ring; R3 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(C1 to C4)alkylamino group, mono- or diarylamino group, (C1 to C4) alkyl group or (C1 to C4)alkoxy group, methylene-dioxy group, amino(C1 to C4)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. |
