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Paper | Regular issue | Vol 43, No. 3, 1996, pp.619-624
Published online, 1st January, 1970
DOI: 10.3987/COM-95-7336
Dihydrobenzofurans via Dienone-Phenol Rearrangement of Spirooxetanes from Photoaddition of Quinones with Electron Donor Olefins

Takumi Oshima,* Yu-ichi Nakajima, and Toshikazu Nagai

*Department of Applied Chemistry, Faculty of Engineering, Osaka University, Toyonaka, Osaka 560, Japan

Abstract

Photoaddition of electron donor olefins such as vinyl ethers and stilbene to variously methyl- and halogeno-substituted 1,4-benzoquinones resulted in the formation of dihydrobenzofurans via a dienone-phenol rearrangement of the primary product spirooxetanes.