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: purchase@heterocycles.com

Price: ¥ 4,320 (Yen only)
Period: This Article can be accessed for 7 days.

Communication | Regular issue | Vol 24, No. 10, 1986, pp.2803-2807
Published online, 1st January, 1970
DOI: 10.3987/R-1986-10-2803
Thermal Reactions of o-Aminophenols and Dimethyl Actylenedicarboxylate

Norio Kawahara,* Takako Shimamori, Tsuneo Itoh, and Haruo Ogura

*Hokkaido College of Pharmacy, 7-1 Katsuraoka-cho, Otaru 047-02, Japan

Abstract

o-Aminophenols reacted with dimethyl acetylenedicarboxylate (DMAD) in refluxing dioxane to give 1,4-benzoxazine derivatives and their isomers. Further, novel tricyclic compounds and benzoxazole derivative were prepared in this reaction.