Annulation of Seven??Membered Rings to [2.2] Paracyclophane
…, PG Jones, P Bubenitschek, B Ahrens…
Index: Ramm, Sonja Margaretha; Hopf, Henning; Jones, Peter G.; Bubenitschek, Peter; Ahrens, Birte; Ernst, Ludger European Journal of Organic Chemistry, 2008 , # 17 p. 2948 - 2959
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Abstract
Abstract Tropylidenes 16 and 17 were prepared from [2.2] paracyclophane (10). On treatment with the corresponding trityl salts they were converted into tropyliophanes 26a (tetrafluoroborate) and 26b (perchlorate). With acetone, 26a furnished trapping product 27, which underwent a homo-Diels–Alder addition with tetracyanoethylene to afford adduct 29. All new compounds were characterized by their spectroscopic and analytical data and for ...
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