Diaryliodosyl salts
AssigneeCiba-Geigy Corporation
InventorEdward Irving
Life of this patent
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Abstract
New diaryliodosyl salts have the formula ##STR1## where R.sup.7 and R.sup.8, which may be the same or different, each represent a monovalent aromatic radical of from 6 to 22 carbon atoms, Z.sup.t- denotes a t-valent anion of formula MX.sub.n.sup.- or R.sup.9 SO.sub.3.sup.- or a t-valent anion of a halogen-free inorganic oxy acid, t is 1, 2 or 3, M represents an atom of a metal or metalloid, X denotes a halogen atom, preferably of fluorine or chlorine, n is 4, 5, or 6 and is one more than the valency of M, with the proviso that MX.sub.n.sup.- can represent SbOHF.sub.5.sup.-, and R.sup.9 denotes a monovalent aliphatic or aromatic group of 1 to 20 carbon atoms. These salts have utility as photocuring catalysts for cationically polymerizable materials such as epoxide resins and phenolic resins.
Claims18
A diaryliodosyl salt of formula ##STR11## wherein R.sup.7 and R.sup.8, which are the same or different, represent phenyl, naphthyl or said phenyl or said naphthyl substituted by one or two groups selected from the group consisting of alkoxy of 1 to 4 carbon atoms, alkyl of 1 to 4 carbon atoms, phenyl, nitro and halogen,
- Z.sup.t- denotes a t-valent anion of formula MX.sub.n -- or R.sup.9 SO.sub.3 -- or is a t-valent anion selected from the group consisting of phosphate, hydrogenphosphate, dihydrogenphosphate, sulfate and hydrogensulfate,
- t is 1, 2 or 3,
- M represents antimony, bismuth, tin, boron, iron, arsenic or phosphorus,
- X represents fluoro or chloro,
- n is 4, 5 or 6, and is one more than the valency of M,
- with the proviso that, when M represents antimony, n is 6 and five of X are each fluoro and the other X represents fluoro or hydroxo, and
- R.sup.9 represents methyl, trifluoromethyl, phenyl or said phenyl substituted by alkyl of 1 to 4 carbon atoms or by halogen.
Diphenyliodosyl hexafluorophosphate, diphenyliodosyl tetrafluoroborate, bis(4-methylphenyl)iodosyl hexafluorophosphate, bis(4-isopropylphenyl)iodosyl hexafluorophosphate, bis(4-fluorophenyl)iodosyl hexafluorophosphate, diphenyliodosyl hexafluoroarsenate, diphenyliodosyl 4-toluenesulfonate, diphenyliodosyl tetrachloroferrate, diphenyliodosyl orthophosphate, diphenyliodosyl sulfate, or bis(3-nitrophenyl)iodosyl hexafluorophosphate.
Dependencies are inferred from the claim text.