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Syntheses of cyclohepta-3,6-diene-1,2,5-trione, p-tropoquinone

✍ Scribed by Shô Itô; Yoshikazu Shoji; Hitoshi Takeshita; Masahiro Hirama; Kiyoshi Takahashi

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

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✦ Synopsis

Cyclohepta-3,6-diene-1,2,5+ione, J has a unique 7-membered quinone structure corresponding to 5-hydroxytropolone 2 and has been designated by Nozoe (1) as "p-tropoquinone" in analogy with p-benzo-6/ 0 -00 1 5 -2 4 3 I J HO 2 quinone. Although some of the derivatives, such as dibenzo-p-tropoquinone (2) and 4-hydroxy-3,6,7+i-

📜 SIMILAR VOLUMES

Synthesis of cyclohepta-4,6-diene-1,2,3-
Synthesis of cyclohepta-4,6-diene-1,2,3-trione, o-tropoquinone
✍ Mosahiro Hirama; Shô Itô 📂 Article 📅 1975 🏛 Elsevier Science 🌐 French ⚖ 188 KB

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 sim