First direct detection of 2, 3-dimethyl-2, 3-diphenylcyclopropanone

AG Moiseev, M Abe, EO Danilov…

Index: Moiseev, Andrey G.; Abe, Manabu; Danilov, Evgeny O.; Neckers, Douglas C. Journal of Organic Chemistry, 2007 , vol. 72, # 8 p. 2777 - 2784

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Citation Number: 6

Abstract

3, 5-Dihydro-3, 5-dialkyl-3, 5-diaryl-4 H-pyrazol-4-ones stimulate interest as potential precursors for 2, 3-diarylcyclopropanones. Photoreactions of trans-3, 5-dihydro-3, 5-dimethyl- 3, 5-diphenyl-4 H-pyrazol-4-one were studied by continuous-wave (CW) and pulsed laser UV photolysis revealing an intermediate that undergoes rearrangement to form cis-and trans- 1, 3-dimethyl-1-phenyl-2-indanones with the yield of ca. 60%. Steady-state photolysis ( ...