申请人:Sankyo Company Limited
公开号:EP0314472A2
公开(公告)日:1989-05-03
New compounds of formula (I):
[in which: R¹ is hydrogen, alkyl, alkoxyalkyl, carboxylic acyl or phenylalkyl, or an optionally substituted tetramethylpiperidyl group; R² is hydrogen, alkyl, carboxylic acyl or phenylalkyl group; R³ is alkylene optionally interrupted by at least one oxygen atom; X is oxygen or -NR⁵- (in which R⁵ is hydrogen or alkyl); Y is -OCO-, -COO-, -CONH- or -OCONH-; n is 2 to 4; and, when n is 2, Z is alkylene optionally interrupted by at least one oxygen, sulfur or aryl, cycloalkyl or heterocyclic group, or, when n is 3, Z is alkanetriyl in which a carbon is optionally replaced by nitrogen or, when n is 4, Z is alkanetetrayl optionally interrupted by at least one oxygen atom] and acid addition salts thereof are valuable polymer stabilizers. The compounds may be prepared by reacting an active compound corresponding to the portion of the compound of formula (I) shown above in brackets.
式(I)的新化合物:
其中R¹ 是氢、烷基、烷氧基烷基、羧酰基或苯基烷基,或任选取代的四甲基哌啶基;R² 是氢、烷基、羧酰基或苯基烷基;R³ 是任选被至少一个氧原子打断的亚烷基;X 是氧或 -NR⁵-(其中 R⁵ 是氢或烷基);Y 是 -OCO-、-COO-、-CONH- 或 -OCONH-;n 是 2 至 4;当 n 为 2 时,Z 为可选被至少一个氧、硫或芳基、环烷基或杂环基打断的亚烷基,或当 n 为 3 时,Z 为其中一个碳可选被氮取代的烷三基,或当 n 为 4 时,Z 为可选被至少一个氧原子打断的烷四基]及其酸加成盐是有价值的聚合物稳定剂。这些化合物可通过与上式(I)化合物中括号内所示部分相对应的活性化合物反应来制备。