Alkoxyphenyl-substituted bisacylphosphine oxides
AssigneeCiba Specialty Chemicals Corporation
InventorsDavid George Leppard, Manfred Kohler
Life of this patent
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Abstract
Alkoxyphenyl-substituted bisacylphosphine oxides of the formula I ##STR1## in which R.sub.1 and R.sub.2 are identical or different and are a radical of the formula II ##STR2## n which R.sub.4 and R.sub.5 independently of one another are C.sub.1 -C.sub.12 alkyl or C.sub.1 -C.sub.12 alkoxy, R.sub.6, R.sub.7 and R.sub.8 independently of one another are hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.12 alkoxy or halogen, and R.sub.3 is a radical of the formula III ##STR3## in which R.sub.9 through R.sub.12 are hydrogen, halogen, alkyl or alkoxy, are suitable for the photopolymerization of compounds containing ethylenically unsaturated double bonds.
Claims7
A compound of the formula I ##STR39## in which R.sub.1 and R.sub.2 are identical or different and are a radical of the formula II ##STR40## in which R.sub.4 and R.sub.3 independently of one another are C.sub.1 -C.sub.12 alkyl or C.sub.1 -C.sub.12 alkoxy, and
- R.sub.6, R.sub.7 and R.sub.8 independently of one another are hydrogen, C.sub.1 -C.sub.12 alkyl, or C.sub.1 -C.sub.2 alkoxy,
- R.sub.3 is a radical of the formula IIIa ##STR41## in which R.sub.9 is C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.20 alkyl which is interrupted by O, C.sub.2 -C.sub.12 alkenoxy-substituted C.sub.1 -C.sub.4 alkyl, halogen-substituted C.sub.1 -C.sub.20 alkyl,
- C.sub.5 -C.sub.6 cycloalkyl, phenyl which is unsubstituted or is substituted with 1-4 C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy groups, naphthyl which is unsubstituted or is substituted with 1-4 C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy groups, phenyl-C.sub.1 -C.sub.5 alkyl which is unsubstituted or is substituted on the phenyl ring with 1-4 C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy groups, or is C.sub.2 -C.sub.12 alkenyl, --CF, or ##STR42## R.sub.9 is a radical of the formula IV or V ##STR43## in which R.sub.1 and R.sub.2 are as defined above,
- X is unsubstituted or --OR.sub.13 -substituted C.sub.1 -C.sub.16 alkylene, C.sub.2 -C.sub.20 alkylene which is interrupted by O or is C.sub.4 -C.sub.12 alkenylene or xylylene,
- R.sub.10 is hydrogen, C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.8 alkyl which is interrupted by O, or is C.sub.2 -C.sub.1 -C.sub.12 alkenyl, cyclopentyl, cyclohexyl, phenyl which is unsubstituted or is substituted with 1 or 2 C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy groups, or is --OR9,
- R.sup.11 is hydrogen, C.sub.1 -C.sub.20 alkyl, C.sub.2 -C.sub.18 alkyl which is interrupted by O, or is C.sub.2 -C.sub.12 alkenyl, cyclopentyl, cyclohexyl, phenyl which is unsubstituted or is substituted with 1 or 2 C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy groups, or is --OR.sub.9, or is a radical of the formula VI ##STR44## or R.sub.9 and R.sub.11 in the formula III together are --CH.sub.2 CR.sub.14 R-- or --C(CH.sub.3).sub.2 CH.dbd.CH--, or
- R.sub.10 and R.sub.11, together with the atoms to which they are attached, form a benzene ring which is unsubstituted or substituted with 1 or 2 C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy groups,
- R.sub.12 is hydrogen or --OR.sub.9,
- R.sub.13 is C.sub.1 C.sub.8 alkyl,
- R.sub.14 and R.sub.15 independently of one another are hydrogen, C.sub.1 -C.sub.8 alkyl, phenyl or --CH.sub.2 OR.sub.13, or R.sub.14 and R.sub.15, together with the carbon atom to which they attached, form a C.sub.5 -C.sub.6 cycloalkyl ring,
- Y is a single bond, --CR.sub.16 R.sub.7 --, --NR18--, S--, --SO.sub.2 --, --(CH.sub.2),-- or --CH.dbd.CH--,
- R.sub.16 is hydrogen, methyl or ethyl,
- R.sub.17 is hydrogen or C.sub.1 -C.sub.4 alkyl,
- R.sub.18 is hydrogen, C.sub.1 -C.sub.12 alkyl or phenyl, and m is a number from 2-12, with the proviso that if the radical --OR.sub.9 in the formula III is in the p-position of the phenyl ring and R.sub.9 is methyl, at least one of the radicals R.sub.10, R.sub.11 and R.sub.12 is not hydrogen.
Dependencies are inferred from the claim text.