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SYNTHESIS OF 2-AMINO-4H-PYRAN-3-CARBONITRILES ITS REACTION WITH CHLOROACETYL CHLORIDE
1 , * 2 , 2 , 2 , 2
1  Institute of Technique in Chemistry, Biology and Security Documents (Ministry of Public Security, Vietnam)
2  Faculty of Chemistry, VNU Hanoi University of Science, 19 Le Thanh Tong, Hanoi (Vietnam)

Abstract:

Some ethyl 6-amino-5-cyano-2-methyl-4-aryl-4H-pyran-3-carboxylates were synthesized by reaction of by using three-component reaction included ethyl acetoacetate, malononitrile and appropriate substituted benzaldehydes. The role of different catalysts was examined, including organic and inorganic substances and ionic liquids. Some 2-amino-4H-pyran-3-carbonitriles were converted by reacting with chloroacetyl chloride. The structures of the obtained compounds were confirmed by the modern spectroscopic methods (IR, 1H NMR, 13C NMR).

Keywords: catalysis, chloroscetyl chloride, ionic liquid, 4H-pyran.
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