Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
6-(3-Guaiazulenyl)-5-isopropyl-3,8-dimethyl-1(6H)-azulenone and Its Norcaradiene-Isomer. Key Intermediates for Novel Intermolecular One-Carbon Transfer in Autoxidation of Guaiazulene
Yoshiharu MatsubaraShin-ichi TakekumaHiroshi YamamotoTetsuo Nozoe
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1987 Volume 16 Issue 3 Pages 455-458

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Abstract

Autoxidation of guaiazulene either at 85 °C in N,N-dimethylformamide-0.5 M sulfuric acid or at 25–35 °C on the surface of a filter paper yielded, together with other products, the two title compounds which were shown to be in equilibrium and to constitute important intermediates for the intermolecular one-carbon transfer reactions frequently observed during autoxidation of many azulenic hydrocarbons.

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