Online article for Non-subscribers

Pay per view

Heterocycles has a pay-per-view service for Non-subscribers.
You will be able to directly purchase the full text article through PayPal.
Your purchased Paper can be downloaded after the payment is completed.
An e-mail will be sent the URL to download the paper.
If you have any questions, please contact:

Price: ¥ 4,400 (Yen only)
Period: This Article can be accessed for 7 days.

Communication | Regular issue | Vol 2, No. 6, 1974, pp.663-668
Published online, 1st January, 1970
DOI: 10.3987/R-1974-06-0663
Photochemistry of Heterocyclic Compounds. III. Photochemical Reaction of O-Acetylindoxyl

Koji Oe, Masashi Tashiro, and Otohiko Tsuge*

*Research Institute of Industrial Science, Faculty of Engineering, Kyushu University, 6-1, Kasuga-koen, Kasuga 816-8580, Japan


Irradiation of O-acetyl indoxyl (I) in benzene solution by a high-pressure mercury lamp afforded indigo (II) and diacetyl (III), and no photo-Fries rearranged products were formed. Upon irradiation of I in the presence of excess benzophenone (IV), however, 2-diphenylmethyleneindolin-3-one (Va) was obtained as a predominant product. The pathways for the formation of II, III, and Va are discussed.