申请人:Ciba-Geigy Corporation
公开号:US05260430A1
公开(公告)日:1993-11-09
Novel diphenyl acetic acid derivatives of the formula I are described, ##STR1## in which R is C.sub.3 -C.sub.18 -2-alkenyl, C.sub.3 -C.sub.8 -2-alkynyl or phenyl-C.sub.1 -C.sub.4 alkyl, each of which is unsubstituted or substituted by phenyl, R.sub.1 is hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.4 alkyl, R.sub.2 is --OR.sub.4 or --NR.sub.5 R.sub.6, R.sub.4 is hydrogen, C.sub.1 -C.sub.18 alkyl or (--CH.sub.2 --).sub.n G, R.sub.5 and R.sub.6 independently of one another are hydrogen, C.sub.1 -C.sub.12 alkyl or phenyl-C.sub.1 -C.sub.4 alkyl, R.sub.7, R.sub.8, R.sub.9 and R.sub.10 independently of one another are hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, with the proviso that at least one of the radicals R.sub.7, R.sub.8, R.sub.9 or R.sub.10 is hydrogen, R.sub.11 is hydrogen, C.sub.1 -C.sub.18 alkoxy, C.sub.5 -C.sub.8 cycloalkoxy, phenyl-C.sub.1 -C.sub.4 alkoxy or C.sub. 3 -C.sub.18 -2-alkenyloxy, n is a number from 2 to 12, and G is a group of the formula ##STR2## The compounds according to the invention can be used as stabilizers for organic materials.
本发明涉及一种新颖的二苯乙酸衍生物,其化学式为I,其中R为C.sub.3-C.sub.18-2-烯基、C.sub.3-C.sub.8-2-炔基或苯基-C.sub.1-C.sub.4烷基,每个基团可以是未取代的或被苯基取代的;R.sub.1为氢、C.sub.1-C.sub.18烷基、C.sub.5-C.sub.12环烷基或苯基-C.sub.1-C.sub.4烷基;R.sub.2为--OR.sub.4或--NR.sub.5R.sub.6,R.sub.4为氢、C.sub.1-C.sub.18烷基或(--CH.sub.2--).sub.nG,R.sub.5和R.sub.6独立地为氢、C.sub.1-C.sub.12烷基或苯基-C.sub.1-C.sub.4烷基,R.sub.7、R.sub.8、R.sub.9和R.sub.10独立地为氢、C.sub.1-C.sub.4烷基或C.sub.1-C.sub.4烷氧基,但至少有一个基团R.sub.7、R.sub.8、R.sub.9或R.sub.10为氢;R.sub.11为氢、C.sub.1-C.sub.18烷氧基、C.sub.5-C.sub.8环烷氧基、苯基-C.sub.1-C.sub.4烷氧基或C.sub.3-C.sub.18-2-烯氧基,n为2到12的数字,G为以下式的基团:##STR2## 本发明的化合物可用作有机材料的稳定剂。