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 22, No. 8, 1984, pp.1693-1695
Published online, 1st January, 1970
DOI: 10.3987/R-1984-08-1693
Synthesis of 3-Ethylpyrazolo[3,4-e][1,3]oxazin-5,7-dione, a Derivative of a New Heterocyclic Ring System

Vladimir G. Beylin and Leroy B. Townsend*

*Department of Chemisry, University of Michigan , 930 North University, Ann Arbor, MI 48109-1055, U.S.A.


The Synthesis of 3-ethylpyrazolo[3,4-e][1,3]oxanin-5,7-dione, a derivative of a new ring system, by annulation of 3(5)-ethyl-4-hydroxy-5(3)-carboxamidopyrazole with ethyl chloroformate or N,N’-carbonyldiimidazole is described.