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 | Special issue | Vol 13, No. 1, 1979, pp.263-266
Published online, 1st January, 1970
DOI: 10.3987/S-1979-01-0263
Photochemistry of Conjugated Nitrogen-Carbonyl Systems. 1. Photoaddition of 2-Pyrimidone and Some Properties of the Resulting Ene-Urea System

Yuichi Kanaoka,* Masato Hasebe, and Yasumaru Hatanaka

*Faculty of Pharmaceutical Sciences, Hokkaido University, Kita 12 Nishi 6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan


Photoexcited 2-pyrimidone 5 reacts with such hydrogen donors 6 as alcohol, ether and amine, to give cyclic ene-urea derivatives 7 in addition to a dimer 8. The ene-urea system 7 is fairly reactive and treatment of 7 with alcohol or thiol leads to adducts 9, 10 which are candidates as possible intermediates for enzymatic studies. Photochemical behaviors of fundamental nitrogen-carbonyl systems 11, 5, 12 are compared.