申请人:Ciba-Geigy Corporation
公开号:US04297513A1
公开(公告)日:1981-10-27
Benzophenone thioethers of the general formula I or Ia ##STR1## in which X is hydrogen, alkyl, alkoxy or --COO-alkyl and X.sub.1 is hydrogen, Cl, Br or --SR, R is an unbranched or branched alkyl radical having 1-20 C atoms, which is unsubstituted or substituted by --OH, --OR.sup.1, --O--C(O)--R.sup.2, --COOR.sup.3, --C(O)-phenyl. --CN, --SR.sup.1, --NH.sub.2, --NHR.sup.4, --NR.sup.4 R.sup.5 or phenyl, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are monovalent hydrocarbon radicals, R.sub.a is an alkylene radical having 2-10 C atoms, which is unsubstituted or substituted by --OH. --OR.sup.1 or --O--C(O)--R.sup.2 and/or is interrupted by --O--, --NR.sup.4, --O--C(O)--R.sup.6 --C(O)--O--, --C(O)--O--R.sup.7 --O--C(O)-- or phenylene and R.sup.6 and R.sup.7 are divalent hydrocarbon radicals, can be prepared by reacting a mono- or di-halogenobenzophenone of the general formula II ##STR2## in which X.sub.2 is Cl or Br and X.sub.3 is H, Cl or Br, in a polar solvent with a mercapto compound of the formula RSH or R.sub.a (SH).sub.2 in the presence of a base in an amount equivalent to the amount of halogen to be reacted.
通式I或Ia的苯基酮硫醚化合物如下:##STR1## 其中,X是氢、烷基、烷氧基或--COO-烷基,X.sub.1是氢、Cl、Br或--SR,R是一种具有1-20个碳原子的直链或支链烷基,可以是未取代或被--OH、--OR.sup.1、--O--C(O)--R.sup.2、--COOR.sup.3、--C(O)-苯基、--CN、--SR.sup.1、--NH.sub.2、--NHR.sup.4、--NR.sup.4R.sup.5或苯基取代,其中R.sup.1、R.sup.2、R.sup.3、R.sup.4和R.sup.5是一价碳氢基,R.sub.a是一种具有2-10个碳原子的烷基,可以是未取代或被--OH、--OR.sup.1或--O--C(O)--R.sup.2取代和/或被--O--、--NR.sup.4、--O--C(O)--R.sup.6、--C(O)--O--、--C(O)--O--R.sup.7--O--C(O)--或苯撑断,其中R.sup.6和R.sup.7是二价碳氢基。可以通过在极性溶剂中以当量量的碱存在下,用公式II的单卤代苯基酮或二卤代苯基酮如下:##STR2## 与公式RSH或R.sub.a(SH).sub.2的巯基化合物反应制备。