Claims
- 1. A compound of formula I ##STR24## in which n is 1, R.sub.1 is phenyl, R.sub.2 is hydrogen or C.sub.1 -C.sub.8 alkyl, R.sub.3 is hydrogen or C.sub.1 -C.sub.8 alkyl, R.sub.4 is hydrogen or C.sub.1 -C.sub.8 alkyl, R.sub.5 is hydrogen, and R.sub.6 is a piperidin-4-yl group of formula XI ##STR25## in which R.sub.13 is hydrogen, and R.sub.14 is hydrogen, C.sub.1 -C.sub.8 alkyl, allyl, benzyl or acetyl.
- 2. The compound according to claim 1 which is phenylphosphonous acid mono-(2,4,6-tri-tert-butylphenyl)ester mono(2,2,6,6-tetramethylpiperidin-4-yl)amide.
- 3. A compound of formula I ##STR26## in which n is 1, R.sub.1 is phenyl, R.sub.2 is hydrogen or C.sub.1 -C.sub.8 alkyl, R.sub.3 is a group of formula III ##STR27## where X is methylene or 2,2-isopropylidene, R.sub.4 is hydrogen or C.sub.1 -C.sub.8 alkyl, and R.sub.5 and R.sub.6 are independently C.sub.1 -C.sub.12 alkyl or cyclo- hexyl.
- 4. The compound according to claim 3 having the formula ##STR28##
- 5. A compound of formula I ##STR29## in which n is 1, R.sub.1 is phenyl, R.sub.2 is hydrogen or C.sub.1 -C.sub.8 alkyl, R.sub.3 is hydrogen or C.sub.1 -C.sub.8 alkyl, R.sub.4 is hydrogen or C.sub.1 -C.sub.8 alkyl, R.sub.5 is C.sub.1 -C.sub.12 alkyl or cyclohexyl, and R.sub.6 is a group of formula IV ##STR30## where R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are as defined above.
- 6. The compound according to claim 5 having the formula ##STR31##
Priority Claims (1)
Number |
Date |
Country |
Kind |
4617/80 |
Jun 1980 |
CHX |
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Parent Case Info
This is a divisional of application Ser. No. 558,214, filed on Dec. 5, 1983, now U.S. Pat. No. 4,579,682, issued on Apr. 1, 1986, which in turn is a divisional of application Ser. No. 271,319, filed on June 8, 1981, now U.S. Pat. No. 4,434,109, issued Feb. 28, 1984.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4434109 |
Rasberger |
Feb 1984 |
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4579682 |
Rasberger |
Apr 1986 |
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Non-Patent Literature Citations (1)
Entry |
Rasberger, Chemical Abstracts, vol. 96, No. 22, Abst. 96:182,218q May 31, 1982. |
Divisions (2)
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Number |
Date |
Country |
Parent |
558214 |
Dec 1983 |
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Parent |
271319 |
Jun 1981 |
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