申请人:Ciba-Geigy Corporation
公开号:US05670642A1
公开(公告)日:1997-09-23
The invention relates to novel compounds of formula I ##STR1## wherein X is a direct bond, sulfur or --CHR.sub.5 --, R.sub.1 is hydrogen, C.sub.1 -C.sub.25 alkyl, unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted C.sub.5 -C.sub.8 cycloalkyl; unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted C.sub.5 -C.sub.8 cycloalkenyl; unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted phenyl; C.sub.7 -C.sub.9 phenylalkyl or --CH.sub.2 --S--R.sub.6 ; R.sub.2 is hydrogen, C.sub.1 -C.sub.25 alkyl, C.sub.2 -C.sub.24 alkenyl, unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted C.sub.5 -C.sub.8 cycloalkyl; unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted C.sub.5 -C.sub.8 cycloalkenyl; unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted phenyl; C.sub.7 -C.sub.9 -phenylalkyl or --CH.sub.2 S--R.sub.6 ; R.sub.3 is hydrogen or methyl; R.sub.4 is C.sub.1 -C.sub.8 alkyl, O.sup..cndot., OH, NO, --CH.sub.2 CN, C.sub.1 -C.sub.18 alkoxy, C.sub.5 -C.sub.12 cycloalkoxy, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 alkynyl, C.sub.1 -C.sub.87 acyl, C.sub.7 -C.sub.9 phenylalkyl which is unsubstituted or substituted at the phenyl ring by C.sub.1 -C.sub.4 alkyl; R.sub.5 is hydrogen or C.sub.1 -C.sub.8 alkyl; and R.sub.6 is C.sub.1 -C.sub.20 alkyl, as stabilisers for protecting organic materials against oxidalive, thermal or light-induced degradation.
本发明涉及一种新的化合物,其化学式为I##STR1##其中X是直接键,硫或--CHR.sub.5 --,R.sub.1是氢,C.sub.1-C.sub.25烷基,未取代或取代C.sub.1-C.sub.4烷基的C.sub.5-C.sub.8环烷基;未取代或取代C.sub.1-C.sub.4烷基的C.sub.5-C.sub.8环烯基;未取代或取代C.sub.1-C.sub.4烷基的苯基;C.sub.7-C.sub.9苯基烷基或--CH.sub.2 --S--R.sub.6;R.sub.2是氢,C.sub.1-C.sub.25烷基,C.sub.2-C.sub.24烯基,未取代或取代C.sub.1-C.sub.4烷基的C.sub.5-C.sub.8环烷基;未取代或取代C.sub.1-C.sub.4烷基的C.sub.5-C.sub.8环烯基;未取代或取代C.sub.1-C.sub.4烷基的苯基;C.sub.7-C.sub.9-苯基烷基或--CH.sub.2 S--R.sub.6;R.sub.3是氢或甲基;R.sub.4是C.sub.1-C.sub.8烷基,O.sup..cndot.,OH,NO,--CH.sub.2 CN,C.sub.1-C.sub.18烷氧基,C.sub.5-C.sub.12环烷氧基,C.sub.3-C.sub.6烯基,C.sub.3-C.sub.6炔基,C.sub.1-C.sub.87酰基,C.sub.7-C.sub.9苯基烷基,其在苯环上未取代或被C.sub.1-C.sub.4烷基取代;R.sub.5是氢或C.sub.1-C.sub.8烷基;R.sub.6是C.sub.1-C.sub.20烷基,作为稳定剂,用于保护有机材料免受氧化,热或光诱导的降解。