The chemistry of α,β-ditosyloxyketones: new and convenient route for the synthesis of 1,4,5-trisubstituted pyrazoles from α,β-chalcone ditosylates |
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| Authors: | Om Prakash Deepak Sharma Rajesh Kumar |
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| Affiliation: | a Department of Chemistry, Kurukshetra University, Kurukshetra 136119, Haryana, India
b Post Graduate Department of Chemistry, M.L.N. College, Yamuna Nagar-135001, Haryana, India |
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| Abstract: | The reaction of α,β-chalcone ditosylates with various reagents such as phenylhydrazine hydrochloride, semicarbazide hydrochloride and thiosemicarbazide in suitable conditions leads to 1,2-aryl shift, thereby providing a novel route for the synthesis of 1,4,5-trisubstituted pyrazoles. |
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| Keywords: | α,β-Chalcone dibromides α,β-Chalcone ditosylates 1,4,5-Trisubstituted pyrazoles Hydroxy(tosyloxy)iodobenzene |
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