254899-85-9Relevant academic research and scientific papers
Anionic [4 + 2] cycloaddition reactions of dihydropyrazolin-5-one dienolate with dienophiles: A novel approach for substituted and fused indazolones
Roy, Amrita,Reddy, Kethiri R.,Ila, Hiriyakkanavar,Junjappa, Hiriyakkanavar
, p. 3001 - 3004 (2007/10/03)
Dihydropyrazolin-5-one dienolate 2 generated by deprotonation of 2,3-dimethyl-4-formyl-1-phenylpyrazolin-5-one (4-formylantipyrine) is shown to be an efficient anionic pyrazolone α-oxy-o-quinodimethane analog, which undergoes facile cycloaddition with a v
