申请人:Ciba-Geigy Corporation
公开号:US03954779A1
公开(公告)日:1976-05-04
A compound having the formula:- ##SPC1## And salts thereof, wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and each is hydrogen, an alkyl residue having from 1 to 9 carbon atoms, a cycloalkyl residue having from 5 to 14 carbon atoms or a cycloalkyl-alkyl residue having from 7 to 14 carbon atoms, Y is hydrogen, 0.degree., an alkyl residue having from 1 to 4 carbon atoms, or an aralkyl residue having from 7 to 12 carbon atoms and Z is hydrogen, an unsubstituted or substituted alkyl residue having from 1 to 20 carbon atoms, an alkenyl or alkynyl residue having from 2 to 20 carbon atoms, a cycloalkyl residue having from 5 to 12 carbon atoms, an aralkyl residue having from 7 to 12 carbon atoms, an aryl residue having from 6 to 12 carbon atoms, or the group having the formula: wherein Z.sub.1 has the same significance as Z as hereinbefore defined, or Z.sub.1 is a group --NR.sub.5 R.sub.6 wherein R.sub.5 is hydrogen or an alkyl residue having from 1 to 4 carbon atoms and R.sub.6 is hydrogen, an alkyl group having from 1 to 20 carbon atoms, a cycloalkyl group having from 5 to 12 carbon atoms, an aralkyl residue having from 7 to 12 carbon atoms or an aryl residue having from 6 to 12 carbon atoms having light stabilising activity.
具有以下化学式的化合物:- ##SPC1##及其盐,其中R.sub.1、R.sub.2、R.sub.3和R.sub.4相同或不同,每个都是氢、具有1至9个碳原子的烷基残基、具有5至14个碳原子的环烷基残基或具有7至14个碳原子的环烷基烷基残基,Y是氢、0度、具有1至4个碳原子的烷基残基或具有7至12个碳原子的芳基残基,Z是氢、具有1至20个碳原子的未取代或取代的烷基残基、具有2至20个碳原子的烯烃或炔烃残基、具有5至12个碳原子的环烷基残基、具有7至12个碳原子的芳基残基、具有6至12个碳原子的芳基残基或具有以下化学式的基团:其中Z.sub.1具有与前述Z相同的意义,或Z.sub.1是一个基团--NR.sub.5 R.sub.6,其中R.sub.5是氢或具有1至4个碳原子的烷基残基,R.sub.6是氢、具有1至20个碳原子的烷基基团、具有5至12个碳原子的环烷基基团、具有7至12个碳原子的芳基残基或具有6至12个碳原子的芳基残基,具有光稳定活性。