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.
如 X 射线结构测定结果所示,三苯并二氢马齿苋二烷二酸二
钾盐 42- 与亲电物反应生成 4,7-二取代三苯并二氢马齿苋衍
生物 3,该衍
生物具有高度
金字塔化的双键;质子化二烷二酸二
钾盐 42- 生成有趣的多环 [2 + 2] 二聚体 5。