Epoxy imidates highly reactive precursors of epoxy acylamidrazones, 3,5-diaminopyrazoles and 3,4-dihydro-2,2 '-biquinoxalines.

Authors
Hurtaud, D Baudy-Floc'h, M Gougeon, P Gall, P Le Grel, P
Citation
D. Hurtaud et al., Epoxy imidates highly reactive precursors of epoxy acylamidrazones, 3,5-diaminopyrazoles and 3,4-dihydro-2,2 '-biquinoxalines., SYNTHESIS-S, (16), 2001, pp. 2435-2440
Citations number
20
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
SYNTHESIS-STUTTGART
ISSN journal
00397881 → ACNP
Issue
16
Year of publication
2001
Pages
2435 - 2440
Database
ISI
SICI code
0039-7881(200112):16<2435:EIHRPO>2.0.ZU;2-V
Abstract
2-Cyano-2-carboximidic acid alkyl ester-oxiranes react with hydrazides and carbazates to give epoxy acylamidrazones. Some of the last ones are precurs ors of tetrasubstituted push-pull alkenes, which in turn can be efficiently converted into 3,5-diaminopyrazoles. Using ortho-phenylenediamine as nucle ophile directly affords 3,4-dihydro-2,2'-biquinoxalines.