A novel one-pot synthesis of 3-arylazo-[1,2,4]triazolo-[4,3-a] pyrimidin-5(1H)-ones

Authors
Shawali, AS Elghandour, AH Sayed, AR
Citation
As. Shawali et al., A novel one-pot synthesis of 3-arylazo-[1,2,4]triazolo-[4,3-a] pyrimidin-5(1H)-ones, SYN COMMUN, 31(5), 2001, pp. 731-740
Citations number
14
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
SYNTHETIC COMMUNICATIONS
ISSN journal
00397911 → ACNP
Volume
31
Issue
5
Year of publication
2001
Pages
731 - 740
Database
ISI
SICI code
0039-7911(2001)31:5<731:ANOSO3>2.0.ZU;2-3
Abstract
A novel synthesis of 3-arylazo-1,7-disubstituted [1,2,4]triazolo[4,3-a]pyri midinone-5(1H)-ones 8 via reaction of 2-thiouracil derivatives 3 and 4 with either 3-chloro- or 3-nitro-1,5-diarylformazans is reported.