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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


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.