New Synthesis of 1-Substituted-1<i>H</i>-indazoles via 1,3-Dipolar Cycloaddition of <i>in situ</i> Generated Nitrile Imines and Benzyne
作者:Christian Spiteri、Steve Keeling、John E. Moses
DOI:10.1021/ol101150t
日期:2010.8.6
A new synthesis of 1-substitued-1H-indazoles via 1,3-dipolar cycloaddition of nitrile imines to benzyne is described. The reaction is completed within 5 min, affording the corresponding N(1)−C(3) disubstituted indazoles in moderate to excellent yields.