Abstract
Cs2CO3-promoted [3 + 2] cyclization of chalcone and N-tosylhydrazones has been developed, a series of novel (4,5-diaryl-1H-pyrazol-3-yl)(aryl)methanone derivatives were synthesized with a wide range of substrates, good tolerance of functional groups and by a one-pot three-component reaction of chalcone, aryl formaldehyde, and TsNHNH2. In addition, the gram-scale synthesis of the product and further transformations were also investigated.
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Acknowledgements
We also thank Jixing Zhao of the Analysis and Testing Center of Shihezi University for the help with data analysis.
Disclosure statement
No potential conflict of interest was reported by the authors.