Sulfonyl-containing styrene derivatives and their use in electro

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product

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430 83, 558409, C07C12150, G03G 1502, G03G 1509

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active

048699837

ABSTRACT:
Method and composition for a sulfonyl-containing styrene derivative of the general formula ##STR1## in which R.sub.1 and R.sub.2 are identical or different and denote hydrogen, optionally halogen-, hydroxyl-, cyano- or (C.sub.1 -C.sub.4 -alkoxy mono- or poly-substituted (C.sub.1 -C.sub.8)-alkyl or phenyl, R.sub.3 denotes hydrogen or a (C.sub.1 -C.sub.4)-alkyl or -alkoxy group, n is a number from 1 to 4 or R.sub.1, R.sub.2 and R.sub.3 together with the associated aminophenyl radical denote julolidinyl or N-(C.sub.1 -C.sub.3)-alkylcarbazol-3-yl, R.sub.4 and R.sub.5 denote hydrogen or the necessary valences for forming a condensation product with formamide derivatives, and R.sub.6 denotes a cyano group, or R.sub.4 denotes hydrogen and R.sub.5 and R.sub.6 together denote the grouping C.dbd.N--R.sub.7, with R.sub.7 being a benzoyl radical which is unsubstituted or substituted by (C.sub.1 -C.sub.4)-alkyl or -alkoxy groups, halogen, cyno, amino or mono- or di-(C.sub.1 -C.sub.4)-alkylamino groups, to a process for their preparation and to their use as dyes or in electrophotographic recording materials.

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