| 摘要 |
Polycyclic compounds of the general formula (I) <IMAGE> (I) where R1 and R2 independently of one another are each hydrogen, alkyl, cycloalkyl, unsubstituted or substituted phenyl, pyridyl or phenylalkyl, or R1 and R2 together form a trimethylene or tetramethylene group, W, X, Y and Z independently of one another are each C-R6 or nitrogen, one or more of the radicals W, X, Y or Z being C-R6, R6 is hydrogen, -CO2R7, -CONR7R8, cyano or hydroxymethyl and R7 and R8 are each hydrogen, alkyl, unsubstituted or substituted phenyl, cycloalkyl, a 5-membered or 6-membered heterocyclic structure or phenylalkyl, R3 and R4 are each hydrogen or R3 and R4 together form a group of the formula <IMAGE> A is a chemical bond, alkylene, <IMAGE> +TR <IMAGE> or cycloalkylene, m and o are each from 1 to 20, R9 is alkyl, cycloalkyl, phenylalkyl or unsubstituted or substituted phenyl, M is a group of the formula <IMAGE> and can be bonded to A both with the nitrogen atom and with the carbon atom, and R10, R11, R12 and R13 independently of one another are each alkyl, or R10 and R11 or R12 and R13 together form a tetramethylene or pentamethylene group, B is a chemical bond, alkylene or phenylalkylene or is alkylene which is interrupted by carbonyl, carboxamide or a carboxylic ester group, R5 is hydrogen, cyano, hydroxyl, <IMAGE> +TR <IMAGE> R14 is hydrogen, alkyl, cycloalkyl, phenylalkyl, phenyl or a 5-membered or 6-membered heterocyclic structure, or M-B-R5 is a group of the formula <IMAGE> +TR <IMAGE>SB,5 NHO+RE in which case A must not be a chemical bond and R15 is alkyl, R16 is hydrogen, alkyl or alkoxy and R17 is hydrogen or alkyl, have extremely good stabilizing properties and no natural color and are very compatible with organic polymers. They also have a low vapor pressure and are stable to thermal decomposition.
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