A Facile Synthesis of Pyrazoles through Metal‐Free Oxidative C(sp2)H Cycloamination of Vinyl Hydrazones

ASIAN JOURNAL OF ORGANIC CHEMISTRY（2015）

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摘要

An efficient synthesis of structurally diversified pyrazole derivatives through metal-free oxidative CH cycloamination of vinyl hydrazones has been developed. The reaction was usually complete within 5min at ambient temperature in air in good to excellent yields.

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关键词

amination,cyclization,hydrazones,metal-free conditions,pyrazoles

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