Tetrahedron Letters p. 2999 - 3002 (1984)
Update date:2022-08-03
Topics:
Mizumoto, Kiyoharu
Okada, Keiji
Oda, Masaji
While (1- and 2-cycloheptatrienyl)phenylcarbonium ions undergo electrocyclizations through the cycloheptatriene forms giving dihydrobenzazulenes, (3-cycloheptatrienyl)diphenylcarbonium ion does through the norcaradiene form. (7-Cycloheptatrienyl)diphenylcarbonium ion undergoes a rearrangement.A possible rationalization is discussed.
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