6-(3-Guaiazulenyl)-5-isopropyl-3, 8-dimethyl-1 (6H)-azulenone and its norcaradiene-isomer. Key intermediates for novel intermolecular one-carbon transfer in …

Y Matsubara, S Takekuma, H Yamamoto, T Nozoe

Index: Matsubara, Yoshiharu; Takekuma, Shin-ichi; Yamamoto, Hiroshi; Nozoe, Tetsuo Chemistry Letters, 1987 , p. 455 - 458

Full Text: HTML

Citation Number: 12

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.