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 3, No. 9, 1975, pp.723-726
Published online, 1st January, 1970
DOI: 10.3987/R-1975-09-0723
Reaction of 2-Aminobenzoxazole with Diketene

Tetsuzo Kato,* Takuo Chiba, and Mohsen Daneshtalab

*Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980-8578, Japan


2-Aminobenzoxazole reacts with diketene to give the related N-acetoacetyl, and pyrimido[1,2-a]benzoxazol-4-one derivatives in good yield. Ring closure reaction of the N-acetoacetyl derivative (IIIa), and other reactions are described.