期刊
ORGANIC & BIOMOLECULAR CHEMISTRY
卷 11, 期 37, 页码 6250-6254出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ob41435c
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资金
- NSFC [21002044]
An efficient synthesis of pyrazoles from tosylhydrazones and nitroalkenes was developed. In comparison with the previously reported 1,3-dipolar cycloaddition reaction of diazo compounds with electron-deficient alkenes or alkynes, this methodology proceeded with a sequential Baylis-Hillman/intramolecular cyclization mechanism and a variety of reversed regioselectivity products were prepared in good yields.
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