| 摘要 |
Compound of formula wherein M is a divalent metal, oxo metal, halogenometal or hydroxymetal, or 2 hydrogen atoms, A is a radical which may be unsubstituted or substituted by phenoxy, naphthyloxy, phenylthio or by naphthylthio, X is a hetero atom selected from the group consisting of N, O and S, m being the number 0 when X is O or S and the number 1 when X is N, Y is any desired substituent that is inert towards alkylating reagents, Z is hydrogen, Z' or COOB, Z' is C2-C12alkylene-N(COOB)2, C2-C12alkylene-NHCOOB, C2-C12alkylene-OCOOB or C2-C12alkylene-SCOOB, x is a number from 1 to 4, and y is a number from 0 to 15, wherein the sum of x and y is a maximum of 16 and, optionally, a plurality of radicals X, Y, Z and/or Z' may be identical or different, and B is an alkyl-, alkenyl-, alkynyl-, aralkyl- or polyglycol- or polyamine-substituted alkylene group. The compound according to the invention is used as a colourant and a pigment precursor, especially in light-sensitive compositions for colour filters.
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