Rylene derivatives and their use as dyes

   
   

Rylene derivatives of the general formula I ##STR1## where the variables have the following meanings: R is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.30 -alkyl, aryl or hetaryl; R.sup.1 is hydrogen or bromine; R.sup.2 is hydrogen or C.sub.1 -C.sub.6 -alkyl; R.sup.3 is hydrogen, C.sub.1 -C.sub.18 -alkyl or substituted or unsubstituted aryl or hetaryl; and n is 2 or 3.

Derivati di Rylene del ## generale del ## STR1 di formula I in cui le variabili hanno i seguenti significati: La R è idrogeno o C.sub.1 sostituito o non sostituito - C.sub.30 - alchile, arile o hetaryl; R.sup.1 è idrogeno o il bromo; R.sup.2 è idrogeno o C.sub.1 - C.sub.6 - alchile; R.sup.3 è idrogeno, arile di C.sub.1 - C.sub.18 - o hetaryl alchilico o sostituito o non sostituito; e la n è 2 o 3.

 
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