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Efficient synthesis of novel dipyridoimidazoles and pyrido[1′,2′;1,2]imidazo[4,5-d]pyridazine derivatives

✍ Scribed by Jean M Chezal; Emmanuel Moreau; Olivier Chavignon; Claire Lartigue; Yves Blache; Jean C Teulade

Book ID
104205552
Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
262 KB
Volume
59
Category
Article
ISSN
0040-4020

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✦ Synopsis

pyridazine derivatives 9a -d were synthesized by two pathways: thermal electrocyclic reaction of 3-alkenylimidazopyridine-2-oximes 10 and direct condensation of ethyl glycinate (or hydrazine) with 2,3-dicarbonylimidazo[1,2-a]pyridines 11.

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