Patent DE-19648723-A1 (DE)
Title: O-Phenol substituted amino-phenol derivatives used as stabilisers in colour photographic materials
Inventor: JEGANATHAN SURULIAPPA GOWPER
IPC: C07C219/34
Filed: 1996-11-25
Abstract: O-Phenol substituted aminophenol derivatives of formula (I) are new; in which Ar1 = a group of formula (II); and Ar2 = a group of formula (III); one R = hydroxyl (OH) and the other R = R7; L = a direct bond or a bridging group of the formulae -CO-(1-18C alkylene)m-, -(1-18C alkylene)-Q-(1-18C alkylene)-, -(1-18C alkylene)-Q-(1-16C alkylene)-O-, -(1-18C alkylene)-Q-(1-18C alkylene)-O-CO-(1-18C alkylene)m-, -(1-18 C alkylene)-CH(R0)-O-CO-(1-18 C alkylene)m-, -(1-18C alkylene)-Q-(1-18C alkylene)-CO-O-(-1-18C alkylene)-, -(1-18 C alkylene)-Q-(1-18C alkylene)-CO-O-(1-18C alkylene)-O-CO-, -(1-18C alkylene)-O-(1-18C alkylene)-CO-O-(1-18C alkylene)-N(R11)-CO-, 2-24C alkylene, optionally with hetero-atom(s) in the chain, 2-28C alkenylene, 3-24C alkenylene with oxygen (-O-) atom(s) in the chain or -(CH2)q-CH(OR12)-R13-; Q = a direct bond, -O-, -S-, -SO-, -SO2-, -N(R11)-, -CH(R0)-, -CO-N(R11)-, -N(R11)-CO- or -O-CO-N(R11)-; m = 0 or 1;  q = 1-18; Y = a direct bond or a divalent bridging group of formula (IV); R0 = 1-18 C alkylene, 2-24 C alkyl with O atom(s) in the chain or a group of formula (V); L1 = 2-18 C alkylene or a group of formula (VI); and L is attached to the rest of the molecule by a group containing Q(CHR0) or CHR0; R1, R2 = hydrogen (H), 1-18 C alkyl, 3-24C alkyl with O atom(s) in the chain, 1-18 C alkenyl, 5-8C cycloalkyl, optionally substituted aryl or a group of the formula -(1-12C alkylene)-COOR19 or -CH2-CH(OR12)-CH2O-R30; R30 = 1-18 C alkyl; or R1R2 = a divalent -(CH2)k-Z-(CH2)k- group forming a ring; k = 1, 2 or 3; Z = -O-, -S-, -SO-, -SO2-, -N(R11)-, -CH2-, -O-SO-O-, -O-B(R20)-O-, -O-P(R21)-O- or -N(R11)-(CH2)g-N(R11)-; g = 1, 2 or 3; R3-10 = H, 1-18 C alkyl, 2-18 C alkenyl, 1-12 C alkoxy, 5-6 C cycloalkyl, optionally substituted aryl or halogen; or R8, R10 = a group of formula (VII); R11, R11' = H, 1-18 C alkyl, 2-18 C alkenyl, optionally substituted aryl or -COR28; R12 = H, 1-18 C alkyl, 2-18 C alkenyl or -COR28; R13 = a divalent bridging group of the formula -(O)m-(1-18 C alkylene)-(O)m-, -O-(1-18 C alkylene)-O-CO- or -O-(1-18C alkylene)-O-CO-(1-18 C alkylene)m-; R14 = H, 1-18C alkyl, 2-18 C alkenyl, 3-8C cycloalkyl, 3-24C alkyl with O atom(s) in the chain, an optionally substituted aryl or heterocyclic group or a group of the formula -(1-12C alkylene)-COO-R29 or -(1-12C alkylene)-CO-NR11R11'; R15-18 = H, 1-18C alkyl, 2-18C alkenyl, 1-12C alkoxy, 5-8C cycloalkyl, optionally substituted aryl or halogen; R19, R19' = H, 1-18C alkyl, 2-18C alkenyl or optionally substituted aryl; R20, R21 = 1-18C alkyl or optionally substituted aryl; R22, R23 = H, 1-18C alkyl, 3-24 C alkyl with O atom(s) in the chain, 2-18C alkenyl, 5-8C cycloalkyl, optionally substituted aryl or a group of the formula -(1-12C alkylene)-COOR18; R24-27 = H, 1-18C alkyl, 2-18 C alkenyl, 1-12 C alkoxy, 5-8C cycloalkyl, optionally substituted aryl, halogen or a group of the formula -(1-12C alkylene)-COOR29; R28, R29 = 1-18 C alkyl, 2-18 C alkenyl, 5-8 C cycloalkyl or optionally substituted aryl; or R29 = also a group of the formula Ar1-O-L-Y- (Y = a direct bond) if R25 = a group of the formula -(1-12C alkylene)-COOR29.  Morpholinophenyl esters of formula (A) are excluded;  Also claimed are (i) colour photographic material containing compound(s) (I); and (ii) amino-phenoy-alkanols of formula (VIII); in which R1, R2 = 2-18C alkenyl, otherwise as in (I); other symbols are as in (I).