申请人:Ciba-Geigy Corporation
公开号:US05258433A1
公开(公告)日:1993-11-02
Sulfoxides of alkylthiomethylphenols of the formula I ##STR1## in which R.sub.1 is hydrogen, C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.18 alkenyl, C.sub.5 -C.sub.7 cycloalkyl, C.sub.5 -C.sub.7 cycloalkenyl, phenyl or C.sub.7 -C.sub.9 phenylalkyl, R.sub.2 is hydrogen, C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.18 alkenyl, C.sub.5 -C.sub.7 cycloalkyl, C.sub.5 -C.sub.7 cycloalkenyl, phenyl, C.sub.7 -C.sub.9 phenylalkyl or a radical --CH.sub.2 --SO--R.sub.5, in which R.sub.5 is C.sub.8 -C.sub.20 alkyl which may be interrupted by --O--, --S-- or --SO-- groups, mono- or dihydroxy-substituted C.sub.2 -C.sub.12 alkyl, phenyl, benzyl, --(CH.sub.2).sub.n COOR.sub.6 or --CH(CH.sub.3)COOR.sub.6, in which R.sub.6 is C.sub.1 -C.sub.20 alkyl and n is 1 or 2, R.sub.3 is hydrogen or a group --CH.sub.2 --SO--R.sub.5, in which R.sub.5 is as defined above, and R.sub.4 has the same meanings as R.sub.2 , with the proviso that only one of the radicals R.sub.2, R.sub.3 or R.sub.4 is the group --CH.sub.2 --SO--R.sub.5 and that, if R.sub.4 is --CH.sub.2 --SO--R.sub.5 and R.sub.1 and R.sub.2 are simultaneously tert-butyl or tert-amyl, R.sub.5 is not C.sub.8 -C.sub.14 alkyl, or mixtures of these compounds with the corresponding non-oxidised compounds are suitable for stabilising organic materials which are sensitive to oxidative, thermal and/or light-induced degradation.
式I中的烷
硫甲基
苯酚亚砜,其中R1为氢、C1-C20烷基、C2-C18烯基、C5-C7环烷基、C5-C7环烯基、苯基或C7-C9苯基烷基,R2为氢、C1-C20烷基、C2-C18烯基、C5-C7环烷基、C5-C7环烯基、苯基、C7-C9苯基烷基或基团--
CH2-SO-R5,其中R5为C8-C20烷基,可以被--O--、--S--或--SO--基团中断,单或二羟基取代的C2-C12烷基、苯基、苄基、--( )nCOOR6或--CH(
CH3)COOR6,其中R6为C1-C20烷基,n为1或2,R3为氢或基团-- -SO-R5,其中R5如上所述,R4与R2具有相同的含义,但前提是仅有R2、R3或R4中的一个基团是-- -SO-R5,并且如果R4为-- -SO-R5且R1和R2同时为叔丁基或叔戊基,则R5不是C8-C14烷基,或者这些化合物与相应的未氧化化合物的混合物适用于稳定对氧化、热和/或光诱导降解敏感的有机材料。