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Report | Regular issue | Vol 9, No. 7, 1978, pp.853-857
Published online, 1st January, 1970
DOI: 10.3987/R-1978-07-0853
Attemped Synthesis of Aporphine Skeleton by Photocyclization of 4,5-Diaryl-4-oxazolin-2-ones

Ichiya Ninomiya,* Ikuko Furutani, Okiko Yamamoto, Toshiko Kiguchi, and Takeaki Naito

*Kobe Women‘s College of Pharmacy, Motoyamakita, Higashinad, Kobe, Hyogo 658, Japan


Irradiation of 4,5-diaryl-4-oxazolin-2-ones (la-f) with substituents on a benzene ring and nitrogen afforded various types of phenanthrenes (2a-h). Attempted synthesis of aporphines was undertaken by applying the photocyclization of 4-oxazolin-2-ones (1b,d,e, and f) and (4a and b).