Reactions of chlorocarbonyl isocyanate with 5-aminopyrazoles and active methylene nitriles: A novel synthesis of pyrazolo[1,5-a]-1,3,5-triazines and barbiturates

Authors
Elgemeie, GH El-Ezbawy, SR Ali, HA
Citation
Gh. Elgemeie et al., Reactions of chlorocarbonyl isocyanate with 5-aminopyrazoles and active methylene nitriles: A novel synthesis of pyrazolo[1,5-a]-1,3,5-triazines and barbiturates, SYN COMMUN, 31(22), 2001, pp. 3459-3467
Citations number
5
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
SYNTHETIC COMMUNICATIONS
ISSN journal
00397911 → ACNP
Volume
31
Issue
22
Year of publication
2001
Pages
3459 - 3467
Database
ISI
SICI code
0039-7911(2001)31:22<3459:ROCIW5>2.0.ZU;2-N
Abstract
Reactions of chlorocarbonyl isocyanate and chlorosulfonyl isocyanate with a minopyrazoles and active methylene nitriles are reported. They lead to nove l pyrazolo[1,5-a]-1,3,5-triazines and barbituric acid derivatives. The stru ctures of the products and the mechanisms of their formation are reported.