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Rong L.,Xuzhou Normal University | Rong L.,Key Laboratory of Biotechnology for Medicinal Plants | Han H.,Xuzhou Normal University | Gao L.,Xuzhou Normal University | And 4 more authors.
Synthetic Communications | Year: 2010

An efficient and convenient method for the preparation of 2,4-diamino-6-arylpyrimidine-5-carbonitrile derivatives by the one-pot reaction of aromatic aldehydes, malononitrile, and guanidine carbonate, in the presence of sodium hydroxide under solvent-free conditions, was reported. This method has the advantages of excellent yields, mild reaction conditions, easy work up, and environmental friendliness over the existing procedures. Copyright © Taylor & Francis Group, LLC. Source


Rong L.,Xuzhou Normal University | Rong L.,Key Laboratory of Biotechnology for Medicinal Plants | Gao L.,Xuzhou Normal University | Han H.,Xuzhou Normal University | And 4 more authors.
Synthetic Communications | Year: 2010

A series of 6-amino-8-aryl-2-methyl-1,2,3,4-tetrahydroisoquinoline-5,7- dicarbonitriles were prepared in good yields under solvent-free conditions by multicomponent reactions of aromatic aldehyde, malononitrile, and 1-methylpiperidin-4-one in the presence of sodium hydroxide (NaOH). The structures of the products were characterized by infrared, 1H NMR spectra, elemental analysis, and high-resolution mass spectrometery (HRMS). Source

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