Reaction of tricyclo[3.2.2.02,4]nona-6,9-diene derivatives with benzene in the presence of palladium(II) acetate afforded pentacyclic benzo derivatives through successive repeated substitutions accompanied by formation of cyclopropane rings. A bicyclo[2.2.2]octa-2,5-diene derivative also underwent a similar reaction.
在乙酸钯 (II) 存在下,三环 [3.2.2.02,4]nona-6,9-二烯衍生物与苯反应,通过连续重复取代并伴随形成环丙烷环,得到五环苯并衍生物。双环[2.2.2]octa-2,5-二烯衍生物也经历了类似的反应。