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

Communication | Regular issue | Vol 26, No. 1, 1987, pp.51-54
Published online, 1st January, 1970
DOI: 10.3987/R-1987-01-0051
Cycloadditions of Ethyl 2-Amino-1-azaazulene-3-carboxylate with Dimethyl Acetylenedicarboxylate

Noritaka Abe

*Department of Chemistry, Faculty of Science, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8512, Japan

Abstract

Reaction of ethyl 2-amino-1-azaazulene-3-carboxylate with dimethyl acetylenedicarboxylate gave two 1:1-adducts (3 and 4), two 1:2-adducts (5 and 6), and a 1:3-adduct (7). Reaction mechanism is discussed.