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的苯并酮硫醚##STR1##其中X为氢,烷基,烷氧基或--COO-烷基,X.sub.1为氢,Cl,Br或--SR,R为具有1-20个碳原子的直链或支链烷基基团,该基团未被取代或被--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.4 R.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为一价碳氢基团,R.sub.a为具有2-10个碳原子的烷基基团,未被取代或被--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)--或苯基中断,R.sup.6和R.sup.7为二价碳氢基团,可以通过在极性溶剂中以等量碱存在下将通式II的单卤苯并酮或二卤苯并酮##STR2##其中X.sub.2为Cl或Br,X.sub.3为H,Cl或Br与化合物RSH或R.sub.a(SH).sub.2反应而制备。