申请人:BASF Aktiengesellschaft
公开号:US04976889A1
公开(公告)日:1990-12-11
4-Formylaminopiperidine derivatives of the formula (I) ##STR1## where n is 1 or 2, R.sup.1 to R.sup.4 are each alkyl or R.sup.1 and R.sup.2 or R.sup.3 and R.sup.4 are tetra- or pentamethylene, R.sup.5 is hydrogen or alkyl, R.sup.6 is hydrogen, unsubstituted or substituted alkyl, alkenyl, aralkyl or acyl, and, when n is 1, Y is hydrogen, unsubstituted or substituted alkyl, alkenyl, cycloalkyl, bicycloalkyl, aralkyl, aryl, alkyl containing heterocyclic radicals, or ##STR2## or, when n is 2, Y is alkylene, cycloalkylene, aralkylene or arylene or is alkylene which is interrupted by oxygen, nitrogen, sulfur or a 5-membered or 6-membered heterocyclic structure, and their acid addition salts have very good stabilizing properties in plastics.
式(I)中的4-甲酰氨基哌啶衍生物,其中n为1或2,R1至R4均为烷基或R1和R2或R3和R4为四元或五元亚甲基,R5为氢或烷基,R6为氢,未取代或取代的烷基,烯基,芳基烷基或酰基,当n为1时,Y为氢,未取代或取代的烷基,烯基,环烷基,双环烷基,芳基烷基,芳基,含杂环基团的烷基或##STR2##,当n为2时,Y为烷基,环烷基,芳基烷基或芳基烷基,或被氧,氮,硫或5元或6元杂环结构中断的烷基,它们的酸加合物在塑料中具有非常好的稳定性。