TY - JOUR AB - Dipotassium tribenzodihydroacepentalenediide 42– reacts with electrophiles to give 4,7-disubstituted tribenzodihydroacepentalene derivatives 3 with a highly pyramidalised double bond, as evidenced by X-ray structural determinations; protonation of the dianion 42– yields an interesting polycyclic [2 + 2] dimer 5. DA - 1993 DO - 10.1039/C39930001727 LA - eng IS - 23 M2 - 1727 PY - 1993 SN - 0022-4936 SP - 1727-1729 T2 - Journal of the Chemical Society, Chemical Communications TI - Structural and chemical properties of tribenzo-4,7-dihydroacepentalene derivatives and their central pyramidalised double bonds UR - https://nbn-resolving.org/urn:nbn:de:0070-pub-17742614 Y2 - 2024-11-22T09:03:47 ER -