Abstract
Abstract Irradiation of 3-acetyl-5,5-diaryl-2-methyl-4,5-dihydrofurans using a high pressure mercury lamp quantitatively gave 2-acetyl-4-aryl-1-methylnaphthalenes. A similar irradiation of 3-acetyl-5,5-diaryl-2-naphthyl-4,5-dihydrofurans yielded binaphthalene derivatives in good yields.
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