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In this study, a simple and highly efficient synthesis of some new 6-amino-4-aryl-2,4-dihydro-3-phenyl pyrano [2,3-c] pyrazole-5-carbonitrile derivatives by one-pot, four-component reaction with aryl aldehydes, hydrazine hydrate, ethyl benzoylacetate and malonitrile has been achieved. This method provides many advantages such as shorter reaction time with high yields, mild reaction conditions and...
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