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Benzo[3,4 cyclobuta[1,2-b cycloheptatriene and benzo[3,4]cyclobuta[1,2]tropylium cation

โœ Scribed by L. Lombardo; D. Wege

Publisher
Elsevier Science
Year
1972
Tongue
French
Weight
165 KB
Volume
13
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

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 replaced by a seven membered 6n electron system. A benzoannellated derivative of 11 has been described recentlyl.

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