Ultrasound Promoted One-pot Synthesis of Substituted 3-Hydroxy-1H-Indazole Using Glyoxylic Acid as a Catalyst under Solvent-free Condition

Author(s): Chandrashekhar G. Devkate*, Ajay M. Patil, Digambar D. Gaikwad & Mohammad Idrees M. Siddique

Synthesis of substituted3-hydroxy-1H-indazoleby one pot condensation benzoate and hydrazine under solvent free condition in the presence of glyoxy;ic acid. Thedevelopedmethodology highlights the use of ul-trasonic irradiation as non conventional sources. The catalyst used is readily available and cost effective which makes the method more green and efficient.


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