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Report | Regular issue | Vol 16, No. 4, 1981, pp.637-639
Published online, 1st January, 1970
DOI: 10.3987/R-1981-04-0637
Oxidative Cyclization of 3-Cinnamoyltropolones with Manganese(III) Acetate and Lead(IV) Acetate

Kimiaki Imafuku,* Kazunori Suezaki, and Hisashi Matsumura

*Department of Chemistry, Faculty of Science, Kumamoto University, Kurokami 2-39-1, Kumamoto 860-8555, Japan


3-Cinnamoyltropolones (1a-i) were oxidized with manganese(III) acetate and lead(IV) acetate to give 2-arylidene-3,8-dihydro-2H-cyclohepta[b]furan-3,8-diones (4a-i), which have an aurone-like structure.