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Formation, characterization, and some reactions of spiro[cyclobutane-1,1′-1′H-azulenium] ion

✍ Scribed by Mitsunori Oda; Aya Sakamoto; Ryuta Miyatake; Shigeyasu Kuroda


Book ID
104209643
Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
778 KB
Volume
55
Category
Article
ISSN
0040-4020

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✍ Mitsunori Oda; Aya Sakamoto; Ryuta Miyatake; Shigeyasu Kuroda 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 227 KB

Direct cyclobutylation of 1,6-dihydroazulene gave the spiro hydrocarbon 6, which was subjected to hydride abstraction to lead to the title cation 4. Its hexafluorophosphate salt was isolated as crystals. The cation 4 showed distinctive chemical behavior compared with its thrce-membcrcd ring homolog.