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Communication | Regular issue | Vol 4, No. 7, 1976, pp.1275-1280
Published online, 1st January, 1970
DOI: 10.3987/R-1976-07-1275
Photosensitized Oxygenation of 2,3-Diphenylindole Derivatives

Masako Nakagawa,* Noriko Ohyoshi, and Tohru Hino

*Faculty of Pharmaceutical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan


Photosensitized oxygenation of 2,3-diphenylindole (1a) gave 3-hydroxyindolenine (5) as a major product. N-Acelyl-2,3-diphenyIindole (1b) yielded 2,3-dihydroxy derivative (10a) whereas N-methylderivative (1c) gave 2,3-bond cleavage product (8c) and 2,3-dihydro-1,4-benzoxazine (11).