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An efficient one-pot synthesis of various 2,3-dihydroquinazolin- $$4(1H)$$ 4 ( 1 H ) -one derivatives was accomplished using $$\hbox {Cu}(\hbox {OTf})_{2}$$ Cu ( OTf ) 2 -catalyzed multi-component reactions between isatoic anhydride, ketones, and amines. The method has several significant advantages; mild reaction conditions, easy handling, and efficiency of catalyst. Graphical...
Efficient one-pot three-component reactions of pyrazolones with arylaldehydes and triethyl phosphite were carried out in the presence of ethylenediammonium diacetate as catalyst to synthesize biologically interesting pyrazolylphosphonate derivatives. This methodology offers several significant advantages such as environmentally benign character, the use of a mild catalyst, high yields, and...
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