期刊
ORGANIC & BIOMOLECULAR CHEMISTRY
卷 13, 期 5, 页码 1492-1499出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ob02365j
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资金
- CSIR-CDRI
- UGC-New Delhi
A mild, efficient and rapid domino reaction involving the Bestmann-Ohira reagent (BOR) and alpha,beta-unsaturated aldehydes has been developed for the synthesis of densely functionalized vinylpyrazoles. This reaction demonstrates the dual reactivity of BOR as a homologation reagent as well as a cycloaddition partner, thus constituting a domino reaction in an operationally simple procedure. The application of this efficient synthesis of pyrazoles has been demonstrated for the synthesis of phosphonyl analogues of pyrrolopyrazole alkaloids.
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