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US5565563A Triphendioxazine compounds 失效
三苯并二恶嗪化合物

Triphendioxazine compounds
摘要:
Triphendioxazine compounds of formula I, ##STR1## in which R.sub.1 and R.sub.2 are either both hydrogen or form a single chain linking the 8,9-; 9,10- or 10,11-positions, the single chain having the formula --NR.sub.5 ---(CO).sub.m --NH--, --CR.sub.5 .dbd.CH--CO--NH--, --CO--CH.sub.2 --CO--NH--, --CO--CH.dbd.CR.sub.5 --NH--, --CO--NH--CO--NH--, --CO--NH--CR.sub.6 .dbd.N--, --CR.sub.6 .dbd.N--CO--NH--, --NR.sub.5--(CO).sub.m --O--or --NH--CR.sub.5 .dbd.N--whereR.sub.5 is hydrogen, C.sub.1-4 alkyl or phenyl, R.sub.6 is hydrogen, C.sub.1-4 alkyl or phenyl;m is 1 or 2 and R.sub.3 and R.sub.4 are either both hydrogen or form a single chain linking the 1,2-, 2,3- or 3,4-positions, the single chain having a formula selected from --NR.sub.5 --(CO).sub.m --NH--, --CR.sub.5 .dbd.CH--CO--NH--, --O--CH.sub.2 --CO--NH--, --CO--CH.dbd.CR.sub.5 --NH--, --CO--NH--CO--NH--, --CONH--CR.sub.6 .dbd.N--, --CR.sub.6 .dbd.N--CO--NH--, --NR.sub.5 --(CO).sub.m --O--or --NH--CR.sub.5 .dbd.N--where the symbols R.sub.5, R.sub.6 and m are defined above andwhen R.sub.3 and R.sub.4 are in the 1,2-position and R.sub.7 is located in the 3-position orwhen R.sub.3 and R.sub.4 are in the 3,4-position and R.sub.7 is located in the 2-position orwhen R.sub.1 and R.sub.2 are in the 8,9-position and R.sub.7 is located in the 10-position orwhen R.sub.1 and R.sub.2 are in the 10,11-position and R.sub.7 is in the 9-positionthen R.sub.7 is hydrogen or C.sub.1-2 alkoxy, otherwise R.sub.7 is hydrogen, with the proviso that if R.sub.1 and R.sub.2 are hydrogen then R.sub.3 and R.sub.4 cannot be hydrogen.These compounds are useful as pigments.
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