93066-80-9Relevant academic research and scientific papers
Sulfonium salts and process for their preparation
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, (2008/06/13)
The present invention provides photoactive sulfonium salts which can be employed as photoinitiators for the polymerization of cationically polymerized organic substances and are soluble in these substances.
Iodonium salts and process for the preparation thereof
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, (2008/06/13)
The invention concerns iodonium salts of the general formula A-I+ --B X-, in which A is a group of the general formula STR1 in which C is a monovalent aromatic hydrocarbon group with 6 to 14 carbon atoms or a monovalent aromatic hydrocarbon group containing at least one oxygen and/or sulphur atom and with 5 to 14 atoms in the aromatic ring, D, E and F are each substituents of C, D being a group of the formula --(O)x --(R)y --SiR1/3, E being a group of the formula --OR2, F being a group of the formula --R3, a being 1, 2, or 3, b being 0, 1 or 2, c being 0, 1 or 2, x being 0 or 1 and y being 0 or 1, and R, R1, R2 and R3 are as defined in claim 1; B is a group of the formula STR2 in which E and F, which are as defined above, may each be bound to the 2, 3, 4, 5 or 6 position in the benzene ring, d is 0, 1 or 2, e is 0, 1 or 2 and X- is a tosylate anion or a weakly nucleophilic or non-nucleophilic anion Y- selected from the group comprising CF3 CO2-, BF4-, PF4-, AsF6-, SbF6-, ClO4-, HSO4- and CF3 SO3-.
