N-aminopyridone dyes

Details N-aminopyridone dyes N-aminopyridone dyes

C - Chemistry, Metallurgy

09

B

C09B 23/04 (2006.01) B41M 5/035 (2006.01) C09B 23/02 (2006.01) C09B 55/00 (2006.01) C09B 57/00 (2006.01)

Patent

CA 2106779

Abstract of the Disclosure: Pyridone dyes useful for thermal transfer have the formula Image (I) where R1 is hydrogen or C1-C4-alkyl, R2 and R3 are identical or different and each is, independently of the other, hydrogen, substituted or unsubstituted C1-C12-alkyl, C5-C7-cycloalkyl, sub- stituted or unsubstituted phenyl, substituted or unsubstituted pyridyl, substituted or unsubstituted C1-C12-alkanoyl, C1-C12-alkoxycarbonyl, substituted or unsubstituted C1-C12-alkylsulfonyl, C5-C7-cycloalkyl- sulfonyl, substituted or unsubstituted phenyl- sulfonyl, substituted or unsubstituted pyridyl- sulfonyl, substituted or unsubstituted benzoyl, pyridylcarbonyl or thienylcarbonyl or are together with the nitrogen atom to which they are bonded unsubstituted or C1-C4-alkyl-substituted succinimido, unsubstituted or C1-C4-alkyl-substituted phthalimido or a five- or six-membered saturated heterocyclic radical which may contain further hetero atoms, X is CH or nitrogen, Y is cyano or a radical of the formula CO-W, CO-OW or CO-NHW where W is hydrogen, C1-C8-alkyl which may be substituted and which may be interrupted by one or two oxygen atoms in ether function, C5-C7-cycloalkyl, phenyl or tolyl, and Z is an aromatic carbocyclic or heterocyclic radical.

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