Patent ID: 6649335
Filing Date: 2003-11-18
Classification: C07D,C09B,G03C

Abstract:
A photographic material comprising a support and at least one light-sensitive silver halide emulsion layer which contains the compound of formula (II) whereinX1 is C(R5, R6), NR7, O, S or Se, X2 is O, S, Se or NR13, R3 with R4, jointly are the remaining members for the completion of a substituted or unsubstituted condensed furano ring system, and the R2 radical, is H, a halogen, SH, CN, CF3, alkyl, aryl, heterocyclyl, alkoxy, aryloxy, alkylthio or arylthio, R10 to R12, independently of each other, are H, a halogen, SH, CN, CF3, alkyl, aryl, heterocyclyl, alkoxy, aryloxy, alkylthio or arylthio, or R10 with R11, or R11 with R12, each jointly are the remaining members for the completion of a substituted or unsubstituted condensed furano, benzene or naphthalene ring system and the R10 or R12 radical, which is not part of the ring system, denotes H, a halogen, SH, CN, CF3, alkyl, aryl, heterocyclyl, alkoxy, aryloxy, alkylthio or arylthio, R5 to R7 independently of each other are alkyl, alkylene-SO3Z1 or alkylene-CO2Z1, wherein the alkyl and alkylene can be further substituted and each comprise 1 to 6 C atoms, R8 and R9 independently of each other are alkyl, alkylene-SO3Z1, alkylene-CO2Z1 or alkylene-Y2â€”N(Z1)â€”Y3-alkyl, wherein the alkyl and alkylene are optionally substituted and each comprise 1 to 6 C atoms, R13 is alkyl, alkylene-SO3Z1 or alkylene-CO2Z1, wherein the alkyl and alkylene are optionally substituted and each comprise 1 to 6 C atoms, Z1 is H or a negative charge, Y2 and Y3, independently of each other, are â€”S(&boxH;O)2â€” or â€”C(&boxH;O)â€”, and M1 is a counterion which may be necessary for charge equalization, L1, L2 and L3 independently of each other are a substituted or unsubstituted methine group, which can be a constituent of one or more carbocyclic rings, and n is 0, 1, 2 or 3.