Epoxy Imidates Highly Reactive Precursors of Epoxy Acylamidrazones, 3,5-Diaminopyrazoles and 3,4-Dihydro-2,2'-Biquinoxalines
| Autor: | Hurtaud, Dominique |
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| Zdroj: | Synthesis; November 2001, Vol. 2001 Issue: 16 p2435-2440, 6p |
| Abstrakt: | 2-Cyano-2-carboximidic acid alkyl ester-oxiranes react with hydrazides and carbazates to give epoxy acylamidrazones. Some of the last ones are precursors of tetrasubstituted push-pull alkenes, which in turn can be efficiently converted into 3,5-diaminopyrazoles. Using ortho-phenylenediamine as nucleophile directly affords 3,4-dihydro-2,2'-biquinoxalines. |
| Databáze: | Supplemental Index |
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