| 摘要 |
A 4-acyloxypiperidine of the formula I <IMAGE> (I) in which R1 denotes C1-C30-alkyl, C3-C20-alkenyl, C3-C20-alkynyl, C2-C30-cyanoalkyl, C2-C30-alkoxyalkyl, C7-C20-aralkyl, 2,3-epoxypropyl, an aliphatic, alicyclic, aromatic, araliphatic or heterocyclic acyl group with 1-20 C atoms or one of the groups -CH2COOR4, -CH2-CH(R5)-OR6, -COOR7 or -CONHR7, in which R4 is C1-C12-alkyl, C3-C6-alkenyl, phenyl, C7-C8-aralkyl or cyclohexyl and R5 is hydrogen, methyl or phenyl and R6 denotes hydrogen or an aliphatic or aromatic, araliphatic or alicyclic acyl group with 1-18 C atoms, in which the aromatic part can optionally be substituted by chlorine, C1-C4-alkyl or C1-C8-alkoxy and/or by hydroxyl, and R7 denotes C1-C12-alkyl, cyclohexyl, phenyl or benzyl, R2 is hydrogen or C1-C8-alkyl, R3 is C1-C30-alkyl, C1-C30-hydroxyalkyl, C2-C30-cyanoalkyl, C2-C30-alkoxyalkyl, C3-C30-alkoxycarbonylalkyl, C3-C20-alkenyl, C3-C20-alkynyl, C3-C12-cycloalkyl, C6-C15-aryl or C7-C20-aralkyl, Z is a monovalent to tetravalent 6-membered cycloaliphatic radical with a C1-C2 bridge member, e is 1-4, m is 0-3 and e+m is 1-4, as stabilizers for organic material. |
