| 摘要 |
Stabilizers for colour photographic recording materials Colour photographic recording material containing, in at least one of the chromogenic colour photographic layers, as a stabilizer, at least one compound of the formula I, (I) in which R1 is, for example, alkyl, cycloalkyl, cycloalkyl substituted by alkyl groups, phenyl or aralkyl, R2 is, for example, H, alkyl, cycloalkyl, cycloalkyl substituted by alkyl groups, phenyl or aralkyl and R3 is H or CH3 and n is the number 1 or 2, in which, if n is 1, and R4 is, for example, alkyl or C3-C20 alkyl which is interrupted by -O-, -S-or -NR7- and is unsubstitued or substituted by -OH, or is a group of the formula or and R24 is alkyl having 1 to 4 carbon atoms, allyl, benzyl, a radical of the formula in which R25 is alkyl having 1 to 24 carbon atoms or allyl, R4 is alkyl substituted by -OH, -OCOR8 or -P(O)(OR9)2, or R4 is, for example, cycloalkyl, cycloalkyl substituted by alkyl groups, alkenyl, aralkyl, alkaryl, phenyl, a group -CH2CH(OH)R10 in which R10 is, for example, aralkyl, or R4 is a group of the formula in which R12 and R13independently of one another are hydrogen or alkyl, Y is -O- or -S- and R14 is, for example, a group of the formula R15 and R16 independently of one another are hydrogen or methyl, m is 0 or 1 and R17 is, for example, hydrogen, alkyl, cycloalkyl, alkenyl, aralkyl, phenyl or alkaryl, and R5 and R6 independently of one another are, for example, hydrogen, alkyl, alkyl interrupted by -O-, cycloalkyl, cycloalkyl substituted by alkyl groups, phenyl, phenyl substituted by alkyl, alkoxy or halogen, alkenyl, aralkyl or hydroxyalkyl, or R5 and R6 together are tetramethylene or pentamethylene or tetramethylene or pentamethylene interrupted by -O-, -NR21- or -S(O)q- in which R21 is, for example, hydrogen, alkyl or phenyl and q is 0, 1 or 2, or, if n is 2, A is a group of the formula -O-X'-O- in which X' is, for example, alkylene, alkenylene, alkynylene or cyclohexylene, or A is a group of the formula in which R" is an alkyl group having 1 to 8 C atoms and b is 0, 1 or 2, or A is a group of the formula or A is a group of the formula or A is a group of the formula -O-CH2-CH(OH)-CH2-O-X2-O-CH2-CH(OH)-CH2-O- in which X2 is the same as X' or is or or A is a group of the formula , in which X3 is, for example, alkylene and R23 is hydrogen, alkyl or phenyl. Some of the compounds described are novel.
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