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Synthesis and properties of benzo[3,4]cyclobuta[1,2-c]tropolone derivatives

โœ Scribed by Masaru Sato; Seiji Ebine; Josuke Tsunetsugu

Publisher
Elsevier Science
Year
1977
Tongue
French
Weight
207 KB
Volume
18
Category
Article
ISSN
0040-4039

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Recent interest in aromatic analogues of biphenylene in which one benzenoid ring is replaced by five membered 6n electron systemsIs prompts us to report our synthesis of the title triene 5 and the derived tropylium salt 11. -The latter is a derivative of biphenylene in which a benzenoid ring is rep