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Reactions with hydroxamoyl halides: Synthesis of several isoxazole, imidazo[1,2-a]pyridine, imidazo[1,2-a]pyrimidine and benz-1,2,4-triazine derivatives

✍ Scribed by Abdou O. Abdelhamid; Abdalla M. Negm; Talaat M. S. Abdeen

Publisher: John Wiley and Sons
Year: 1988
Tongue: English
Weight: 250 KB
Volume: 321
Category: Article
ISSN: 0365-6233
DOI: 10.1002/ardp.19883211217

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✦ Synopsis

Benzofuroylhydroxamoyl chloride (3) reacted with acrylonitrile, N-tolylmaleimide and active methylene compounds to afford the isoxazoline 4, the pyrrolidino13,4-d]isozazoline 5 and the isoxazole derivatives 6, 7, respectively. Nitrosoirnidazo[ 1,2-alpyridines 10 and the imidazo[ 1,2-alpyrimidine 12 were obtained by the reaction of 3 with 2-aminopyridine and 2-aminopyrimidine, respectively. 3 reacted also with o-phenylenediamine and o-aminothiophenol to give the dihydrobenztriazine 13 and the benzothiadiazine 15, respectively.

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