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Studies with enamines and azaenamines: A novel efficient route to 6-amino-1,4-dihydropyridazines and their condensed derivatives

✍ Scribed by Said A. S. Ghozlan; Ismail A. Abdelhamid; Hamdi M. Hassaneen; Mohamed H. Elnagdi

Publisher: Journal of Heterocyclic Chemistry
Year: 2007
Tongue: English
Weight: 259 KB
Volume: 44
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570440118

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## Abstract magnified image Novel routes to 3‐aminopyridazines, 10a__H__‐pyridazino[1,6‐__a__]quinazoline and, thieno[3,4‐__d__]pyridazine utilizing the reaction of 2‐oxobutanal‐1‐arylhydrazones **3a,b** with α,β‐unsaturated nitriles are described. Condensation of **3** with ethyl cyanoacetate aff