Base Promoted Eco-friendly Synthesis of Trisubstituted Pyrazoles from α,β-Alkynic N-Tosylhydrazones

来源 :中国化学会全国第十二届有机合成化学学术研讨会 | 被引量 : 0次 | 上传用户:chengshy2008
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Pyrazole is one of the important N-heterocycle broadly found in many natural products andpharmaceutically active molecules and frequently used as useful ligands for metal catalyzedcross-coupling reactions in material science and in organic synthesis.1 Their diversepharmacological and biological activities have stimulated substantial interest in the preparation ofthese important heterocycles.
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