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Synthesis of 2-Amino-3,5-dicarbonitrile-6-thiopyridines Using Silica-bonded N-Propyldiethylenetriamine as a Heterogeneous Solid Base Catalyst

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Figure

Fig. 1. Structure of some bio-active compounds containing 2-amino-pyridine-3,5-dicarbonitriles
Table 1. Investigation the Effect of Catalysts and Solvents on the Reaction of 4-Chloro-benzaldehyde,                      Malononitrile and 2-Amino-thiophenol in Different Conditions a

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