Synthesis of 2<i>H</i>-Indazoles by the [3 + 2] Cycloaddition of Arynes and Sydnones
作者:Chunrui Wu、Yuesi Fang、Richard C. Larock、Feng Shi
DOI:10.1021/ol100586r
日期:2010.5.21
A rapid and efficient synthesis of 2H-indazoles has been developed, which involves the [3 + 2] dipolar cycloaddition of arynes and sydnones. The process proceeds under mild reaction conditions in good to excellent yields.
Direct Arylations of 2<i>H</i>-Indazoles On Water
作者:Stephan A. Ohnmacht、Andrew J. Culshaw、Michael F. Greaney
DOI:10.1021/ol902537d
日期:2010.1.15
The efficient palladium-catalyzed synthesis of a range of substituted 2H-Indazoles via C−H arylation is reported. Reactions are performed on water and provide a direct and mild route toward 2,3-diaryl indazoles of widespread biological significance.