期刊
ORGANIC LETTERS
卷 14, 期 16, 页码 4070-4073出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol301695e
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资金
- DAE India
- CSIR India
- IIT Bombay
A one-pot, two-step, three-component method for the conversion of commercially available aldehydes to phosphonylpyrazoles has been developed, demonstrating, for the first time, the dual reactivity of the Bestmann-Ohira reagent (BOR) in a single-pot transformation. This method, extended to the synthesis of sulfonylpyrazoles by employing BOR in the first step and a diazomethyl sulfone in the second step, is complementary, with regard to regioselectivity, to the previous methods for the synthesis of such functionalized pyrazoles.
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