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Communication | Regular issue | Vol 53, No. 2, 2000, pp.271-276
Published online, 1st January, 1970
DOI: 10.3987/COM-99-8778
Electron Transfer-initiated Photocyclization of Substituted α-Dehydro(1-naphthyl)alanines

Tadamitsu Sakurai,* Yoshiko Morioka, Kei Maekawa, and Kanji Kubo

*Department of Applied Chemistry, Faculty of Technology, Kanagawa University, Kanagawa-ku, Yokohama 221-8686, Japan


On irradiation in the presence of triethylamine, the title compounds (1) having n-butyl and benzyl groups gave preferentially dihydrobenzoquinolinones (2) via electron transfer, whereas the introduction of the bulky tert-butyl and phenyl substituents into 1 resulted in the formation of benzoisoquinoline (3) and 1-azetine (4) derivatives without affording 2.