81877-77-2Relevant academic research and scientific papers
Reaction of 3-Iodoflavanones with Hydrazine Hydrate & Phenylhydrazine: Synthesis of Pyrazoles
Joshi, M. G.,Wadokar, K. N.
, p. 1089 - 1090 (2007/10/02)
3-Iodoflavanones (IIa-d), obtained from 2'-hydroxy-4-methoxychalkones and ICl in acetic acid, when reacted with N2H4 * H2O in ethanol at room temperature give 3,5-diarylpyrazoles (IIIa-d) while with C6H5NH-NH2 * HCl in pyridine, 3,5-diaryl-1-phenylpyrazoles (IVa-d) are obtained.The identity of III and IV has been confirmed by independent and unambiguous synthesis of these pyrazoles from 2-hydroxydibenzoylmethanes.
