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Synthesis of cyclohepta-4,6-diene-1,2,3-trione, o-tropoquinone

✍ Scribed by Mosahiro Hirama; Shô Itô

Publisher
Elsevier Science
Year
1975
Tongue
French
Weight
188 KB
Volume
16
Category
Article
ISSN
0040-4039

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✦ Synopsis

In the preceeding paper, we hove described successful synthesis of p-tropoquinone, cyclohepto-3,6diene-1,2,5+ione (1). The success encouraged us to prepare hitherto unknown o-tropoquinone CL, a seven-membered y&-triketone analogous to o-benzoquinone. In this paper, we report the synthesis of its simple derivatives ond the evidences for the presence of such o quinone itself In onologous woy to synthesizing p-tropoquinone, 3-hydroxytropolone 2 was submitted to a 2,3-di-

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