摘要 |
Monomers and dimers of mono-azo compounds of formula wherein: D is an optionally substituted aryl or an optionally substituted heteroaryl group; R1 and R2 are each independently optionally substituted alkyl: halo: amino:—NR4R5; wherein R4 is H, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted acyl, optionally substituted aryl, optionally substituted heterocyclyl; and R5 is optionally substituted alkyl, optionally substituted alkoxy, optionally substituted acyl, optionally substituted aryl, optionally substituted heterocyclyl or R4 together with R5 and the nitrogen to which they are attached forms an optionally substituted 5 or 6 membered ring:—OR6; wherein R6 is H or optionally substituted alkyl: or—SR7; wherein R7 is optionally substituted alkyl; R3 is amino: halo;—NR4R5; wherein R4 is H, optionally substituted alkyl, optionally substituted alkoxy, optionally substituted acyl, optionally substituted aryl, optionally substituted heterocyclyl; and R5 is optionally substituted alkyl, optionally substituted alkoxy, optionally substituted acyl, optionally substituted aryl, optionally substituted heterocyclyl or R4 together with R5 and the nitrogen to which they are attached forms an optionally substituted 5 or 6 membered ring: hydroxy:—OR6; wherein R6 is H or optionally substituted alkyl: or—SR7; wherein R7 is optionally substituted alkyl. Also compositions, inks and ink-jet cartridges containing these compounds and ink-jet printing processes using these compounds. |