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One-Pot Base-Catalyzed Condensation Reactions of Activated Nitriles and 2-Hydroxy-1-naphthalenecarbaldehyde with Different Ketones

A. A. Fadda, M. T. Zimaity, M. M. Girges, Ed. Biehl, and H. M. Khalid

Department of Chemistry, Mansoura Faculty of Science, Mansoura University, 355 16 Mansoura, Egypt

 

Abstract: Several new naphtho[1',2':5,6]pyrano[2,3,d-de](pyrido[2,3-d]pyrimidine), naphtho[1',2':5,6]pyrano[2,3-d]pyrimidine, and naphtho[2,1-b]pyran derivatives were prepared by a one-pot condensation reaction of malononitrile and 2-hydroxy-1-naphthalenecarbaldehyde (I) in the presence of different kinds of ketones and ammonium acetate, The effect of solvents and different basic catalysts on the reaction of I with cyanoacetamide or ethyl cyanoacetate in the presence of different ketones was also investigated.

Full paper in Portable Document Format: 484a252.pdf

 

Chemical Papers 48 (4) 252–256 (1994)

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