Phenylcycloheptabenzofuran from (2-phenoxyphenyl) phenylcarbene and its photoisomerization.

H Tomioka, H Murata, S Murata

Index: Tomioka, Hideo; Murata, Hiroshi; Murata, Shigeru Bulletin of the Chemical Society of Japan, 1990 , vol. 63, # 10 p. 3050 - 3052

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Citation Number: 4

Abstract

Photolysis (> 350 nm) of (2-phenoxyphenyl) phenyldiazomethane (1) in cyclohexane at 10° C gave the title compound (4), while similar irradiation with a shorter wavelength light (> 300 nm) afforded a mixture of the isomers (5–7), which were shown to be formed by photoisomerization of the initially formed 4.