Claims
- 1. An acylphosphine oxide compound of the formula ##STR27## where R.sup.1 is straight-chain or branched alkyl of 1 to 6 carbon atoms, cyclohexyl, cyclopentyl, phenyl or naphthyl which are unsubstituted or substituted by halogen, alkyl of 1 to 6 carbon atoms or alkoxy of 1 to 6 carbon atoms, a pyridyl or thienyl radical, R.sup.2 has one of the meanings of R.sup.1 or is alkoxy of 1 to 6 carbon atoms, phenoxy, methylphenoxy, benzyloxy or vinyloxy, or R.sup.1 and R.sup.2 may be joined together to form a five- or six-membered P-containing ring, and R.sup.3 is straight-chain or branched alkyl of 2 to 18 carbon atoms, a cyclopropyl, cyclobutyl, cyclopentyl, 1-methylcyclopentyl, cyclohexyl, 1-methylcyclohexyl, norbornadienyl, adamantyl, vinyl, methylvinyl, naphthyl radical, phenyl or naphthyl which are substituted by alkyl of 1 to 8 carbon atoms or by thioalkoxy of 1 to 6 carbon atoms, a naphthyl which is substituted by alkoxy of 1 to 6 carbon atoms, a pyridyl or thienyl radical, and may contain additional functional groups, or is the group ##STR28## where R.sup.1 and R.sup.2 have the above meanings and X is phenylene or butane-1,4-diyl with the proviso that R.sup.1 is not t-butyl or benzyl if R.sup.3 stands for t-butyl or n-butyl.
- 2. An acylphosphine oxide compound as set forth in claim 1, wherein R.sup.3 is a tertiary alkyl radical of 4 to 18 carbon atoms.
- 3. An acylphosphine oxide compound as set forth in claim 1, wherein R.sup.3 is mono-, di- or tri-alkyl-substituted phenyl, each alkyl being of 1 to 8 carbon atoms.
Priority Claims (1)
Number |
Date |
Country |
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2830927 |
Jul 1978 |
DEX |
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Parent Case Info
This is a continuation, of application Ser. No. 55,360, filed July 6, 1979, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3826640 |
Theissen |
Jul 1974 |
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Non-Patent Literature Citations (2)
Entry |
Laskorin et al., Chemical Abstracts, vol. 82, No. 3, 16, 899d, Jan. 20, 1975. |
Musierowicz et al., Chemical Abstracts, vol. 88, No. 25, 189, 901a, Jun. 19, 1978. |
Continuations (1)
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Number |
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Parent |
55360 |
Jul 1979 |
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