Synthesis of 2H-Indazoles by the [3 + 2] Cycloaddition of Arynes and Sydnones
Organic Letters2010Vol. 12(10), pp. 2234–2237
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Abstract
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.
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