Claims
- 1. A compound of formula I', ##STR23## wherein each R.sub.o, independently, is (C.sub.1-8) alkyl, the aggregate of the carbon atoms in the two alkyl groups not exceeding 10;
- each X, independently, is oxygen or sulfur; and
- each R.sub.1, independently, is (C.sub.4-18) alkyl; unsubstituted phenyl or phenyl substituted by 1 to 3 substituents selected from 1 to 3 (C.sub.1-9) alkyl groups, said alkyl groups having an aggregate of carbon atoms not exceeding 12, a cyclohexyl group, an unsubstituted phenyl group and a mono-(C.sub.1-4) alkyl-substituted phenyl group.
- 2. A compound according to claim 1 of formula I", ##STR24## in which each R.sub.o and each X, independently, is as defined in claim 1,
- and each R.sub.1 ", independently, is (C.sub.4-18) alkyl, unsubstituted phenyl or phenyl substituted with 1 to 3 (C.sub.1-9) alkyl groups, said alkyl groups having an aggregate of carbon atoms not exceeding 12.
- 3. A compound according to claim 1, in which each R.sub.o is the same, each X is the same and each R.sub.1 is the same.
- 4. A compound according to claim 1 of the formula ##STR25## of the formula ##STR26## of the formula ##STR27## of the formula ##STR28## or of the formula ##STR29##
Priority Claims (1)
Number |
Date |
Country |
Kind |
10201/77 |
Aug 1977 |
CHX |
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Parent Case Info
This is a continuation of application Ser. No. 66,110 filed Aug. 13, 1979, which in turn is a continuation-in-part of Ser. No. 934,771, filed Aug. 18, 1978, both now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4238422 |
Cozens et al. |
Dec 1980 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
66110 |
Aug 1979 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
934771 |
Aug 1978 |
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