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Communication | Regular issue | Vol 31, No. 1, 1990, pp.17-22
Published online, 1st January, 1970
DOI: 10.3987/COM-89-5210
A Convenient, One-Pot Azulene Synthesis from Cyclohepta[b]furan-2-ones and Vinyl Ether and Its Analogues. (II). Acetals as Reagent

Tetsuo Nozoe,* Hidetsugu Wakabayashi,* Sumio Ishikawa, Chi-Phi Wu, and Paw-Wang Yang*

*Department of Chemistry, Faculty of Science, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan

Abstract

Variously functionalized azulene derivatives were synthesized in one-pot and by the reaction of cyclohepta[b]furan-2-ones with acetals of several aldehydes and ketones on heating at 160-190 °C in neat or aprotic solvent.