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Facile synthesis of thiadiazolo [2,3-b] quinazoline derivatives via the Japp-Klingemann Reaction

โœ Scribed by Abdou O. Abdelhamid; Hamdi M. Hassaneen; Ikhlass M. Abbas; Ahmad S. Shawali


Book ID
103400076
Publisher
Elsevier Science
Year
1982
Tongue
French
Weight
314 KB
Volume
38
Category
Article
ISSN
0040-4020

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โœ Ahmad S. Shawali; Magda A. Abdallah; Mosselhi A. N. Mosselhi; Thoraya A. Farghal ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 137 KB

## Abstract Coupling of active [(4โ€oxoโ€6โ€phenylโ€3__H__โ€pyrimidinโ€2โ€yl)thio]methine compounds (**3**) with diazotized anilines in the presence of base gave [1,2,4]triazolo[4,3โ€a]pyrimidines (**7**). The latter products were also obtained by reactions of hydrazonoyl chlorides (**10**) with either 6โ€p