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A Salt of the Dication Cycloheptatrienylidenemethyleneditropylium
Author(s) -
Mizumoto Kiyoharu,
Kawai Hideki,
Okada Keiji,
Oda Masaji
Publication year - 1986
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198609161
Subject(s) - dication , protonation , salt (chemistry) , chemistry , medicinal chemistry , photochemistry , ion , organic chemistry
The symmetrical di‐ and trications 1 and 2, respectively, containing tropylium moieties . were prepared from dicycloheptatrienyl‐heptafulvalene. Reaction with Ph 3 C ⊕ BF 4 ⊖ affords, via the (nonisolable) monocation, the dication 1 , whose BF 4 ⊖ salt forms blue needles. 1 undergoes protonation by strong acids to give 2 .
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