Lacquered tris-or tetracationic polymethin dyes.

摘要

Lacquered tris- or tetracationic polymethine dyes I where the variables have the following meanings: A is the radical of a fused-on benzene or naphthalene nucleus, which may be optionally subsituted; Y is nitrogen or phosphorus, (R)3 is three identical or different members of the following set of radicals: C1-C18-alkyl groups, whose carbon chain may be interrupted by oxygen atoms in ether function and which may carry up to three of the following substituents: carboxyl, C1-C4-alkanoyl, C1-C4-alkoxycarbonyl, C1-C4-alkanoylamino, C1-C4-alkoxycarbonylamino, acryloyloxy, methacryloyloxy, phenyl, amino, cyano, hydroxyl or halogen; and phenyl or C5-C7-cycloalkyl groups, which may each carry up to three of the following substituents: C1-C4-alkyl, C1-C4-alkoxy or halogen; Z is -NR<1>-, -O-, -S-, -C(CH3)2- or -CH=CH-; where R<1> is one of the radicals defined for R; D is -CX<1>=, -CH=CX<1>-CH=; or where the variables have the following meanings: X<1> is hydrogen, chlorine, bromine or C1-C6-alkyl; X<2> is chlorine, cyano, C1-C12-alkoxy or C1-C12-alkylthio; aryloxy or arylthio, which may each carry up to five of the following substituents: amino, halogen, nitro, cyano, isocyanato, isothiocyanato, hydroxyl, carboxyl, acryloyloxy, methacryloyloxy, C1-C12-alkyl, C2-C12-alkenyl, C1-C12-alkoxy, C1-C12- alkanoyl, C1-C12-alkanoyloxy, C1-C12-alkoxycarbonyl, C1-C12-alkoxycarbonyloxy, mono(C1-C12-alkyl)amino and/or di(C1-C12-alkyl)amino, wherein the carbon chain of the alkyl radicals may be interrupted by oxygen atoms in ether function and the alkyl radicals of the amino groups may be substituted by hydroxyl; an amino group or an ammonio group where R<2>, R<3> and R<4> are independently of one another C1-C12-alkyl, whose carbon chain may be interrupted by oxygen atoms in ether function, or aryl, one of the radicals may in each case also be hydrogen, and R<2> and R<3> may also be joined together to form a 5- or 6-membered ring containing the nitrogen atom with or without further heteroatoms; Het<(-)> is the equivalent of a heteropolyacid anion; m is from 1 to 10; and n is 3 or 4. e