Decacylene (2) was obtained in 15-21% yield by reaction of acenaphthenequinone (6) with bis(η6-biphenyl)titanium(0) (9) in toluene or diglyme at 110°C and in 18% yield by reaction of 6 with phosphorus pentasulfide in boiling toluene. The new reactions are used to attempt the conversion of 3,8-dibromoacenaphthenequinone (7) to 3,4,9,10,15,16-hexabromodecacyclene (3) which is considered to serve as a suitable precursor for the bowl-shaped polycyclic aromatic hydrocarbon C36H12 (1).
苊醌(6)与双(δ-6-
联苯)
钛(0)(9)在 110°C 的
甲苯或
二甘醇中反应得到癸二烯(2),收率为 15-21%;6 与五
硫化
磷在沸腾的
甲苯中反应得到癸二烯(2),收率为 18%。这些新反应被用来尝试将 3,8-二
溴苊醌 (7) 转化为 3,4,9,10,15,16-六
溴癸环烯 (3),后者被认为是碗形多环
芳烃 C36H12 (1) 的合适前体。