Reactions of Chalcones
Oxidative cyclization of chalcones with benzohydrazide and 4-nitrobenzohydrazide using sulfamic acid as a catalyst. Chalcones were prepared by condensation of aromatic aldehydes with acetophenones in PEG-400 in the presence of potassium hydroxide.
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Cyclization of chalcones.
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Synthesis of chalcone
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