| abstract |
The description relates to novel sulphonium salts of general formula (I) in which A is a monovalent radical of general formula (II), G is a monovalent aromatic hydrocarbon radical with 6 to 14 carbon atoms or a monovalent aromatic hydrocarbon radical with 5 to 14 ring atoms containing at least one oxygen and/or sulphur atom, with the proviso that in the radical G one hydrogen atom is replaced by a chemical bond to the sulphur atom and D, E and F are constituents of G, where D is a radical of formula: -(O)x-(R)y-SiR3<1>, E is a radical of the formula -OR<2>, F is a radical of the formula -R<3>, a is 1, 2 or 3, b is 0, 1 or 2, c is 0, 1 or 2, x is 0 or 1 and y is 0 or 1, and R, R<1>, R<2> and R<3> have the meanings given in Claim 1, X<-> is a halide ion, Z<-> is a tosylate anion or a weakly or non-nucleophilic anion, Y<-> is selected from the group CF3CO2<->, BF4<->, PF6<->, AsF6<->, SbF6<->, ClO4<->, HSO4<-> and CnF(2n+1-m)Hm-SO3<->, where n and m have the meanings given in Claim 1. |