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Communication | Regular issue | Vol 34, No. 6, 1992, pp.1093-1096
Published online, 1st January, 1970
DOI: 10.3987/COM-92-6034
A Breakthrough for the Photochemical Arylation in the 3-(Phenylmethyl)-2(5H)-furanone system Leading to the Tetrahydroindenofuranone System

Osamu Muraoka,* Genzoh Tanabe, Kyoko Sano, and Takefumi Momose*

*Faculty of Pharmaceutical Sciences, Kinki University, Kowakae 3-4-1, Higashi-osaka 577, Japan


The photochemistry of the ’central methane’-substituted 3-benzyl-2(5H)-furanone system (1) is described. Despite its di-π-methane structure, photochemical arylation was found to predominate in place of the di-π-methane rearrangement, and gave substituted tetrahydroindenofuranones (2) in good yields.