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■ The Formation of Azuleno[2,1-d]pyrimidine Derivatives by the Reactiohn of 2-Acetylimino-2H-cyclohepta[b]furan Derivatives with Active Methylene Compounds

Kahei Takase,* Tomoo Nakazawa, and Tetsuo Nozoe

*Department of Chemistry, Faculty of Science, Tohoku University, Aoba-ku, Ssendai 980-8578, Japan

Abstract

The reaction of 2-acetylimino-2H-cyclohepta[b]furan derivatives with some active methylene compounds directly gave azuleno[2,1-d]pyrimidine derivatives, which were also synthesized from 2-amino-1-carbamoylazulenes.