Claims
- 1. A cyclic oligomer of the formula ##STR12## wherein (a) x is an integer of from 3 to 8;
- (b) R.sub.1 and R.sub.2 are independently hydrogen or lower alkyl; and
- (c) R.sub.3 is hydrogen, hydroxyl, cyano, a hydrocarbyl radical R.sub.4 selected from the group consisting of alkyl, aryl, alkaryl, aralkyl and alkenyl, the corresponding hydroxy-substituted R.sub.4 hydrocarbyl radical or R.sub.3 is represented by one of the formulas ##STR13## and --O--R.sub.4, wherein each hydrocarbyl radical R.sub.4 has from 1 to 24 carbon atoms.
- 2. The cyclic oligomer defined in claim 1 wherein R.sub.1 is hydrogen and R.sub.2 is hydrogen, methyl or ethyl.
- 3. The cyclic oligomer defined in claim 2 wherein R.sub.2 is hydrogen.
- 4. The cyclic oligomer defined in claim 1 wherein R.sub.3 is hydrogen, hydroxyl, alkyl of from 1 to 10 carbon atoms, phenyl or ##STR14## wherein R.sub.4 is an alkyl group of from 8 to 24 carbon atoms.
- 5. The cyclic oligomer defined in claim 4 wherein R.sub.4 is an alkyl group of from 16 to 20 carbon atoms.
- 6. The cyclic oligomer defined in claim 1 wherein x is 3, 4 or 5.
- 7. The cyclic oligomer defined in claim 3 wherein R.sub.3 is hydrogen, hydroxyl, octyl, phenyl, --NH--C(O)--C.sub.2 H.sub.5 or --O--C(O)--C.sub.17 H.sub.35.
- 8. The cyclic oligomer defined by claim 3 wherein R.sub.3 is hydrogen or alkyl of from 1 to 10 carbon atoms.
- 9. The cyclic oligomer defined by claim 3 wherein R.sub.3 is phenyl.
- 10. The cyclic oligomer defined by claim 3 wherein R.sub.3 is ##STR15## and wherein R.sub.4 is an alkyl group of from 16 to 20 carbon atoms.
- 11. The cyclic oligomer defined in claim 10 wherein R.sub.4 is a linear alkyl group of 17 carbon atoms.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of our earlier copending application Ser. No. 180,236 filed Sept. 13, 1971, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3458818 |
Thompson |
Dec 1969 |
|
Non-Patent Literature Citations (3)
Entry |
Tsuboyama et al., Tetrahedron Letters No. 16, pp. 1367-1370 (1970). |
Hansen et al., J. Het. Chem., vol. 5, p. 305 (1968). |
Dermer et al., Ethylenimine and Other Aziridines, (Academic Press, 1969), pp. 317-322 and 327-332. |
Continuations (1)
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Number |
Date |
Country |
Parent |
180236 |
Sep 1971 |
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