Cage Hydrocarbons Derived from Dibenzosuberenone

The reinvestigation of the synthesis of the fascinating cage compound 2 reveals an incorrect structure of photodimer 2, as well as of the putatively isolated intermediate 9. These products have to be reassigned as monomeric pyramidalized alkene 3 and spirocyclic dichloride 10, respectively.对笼状化合物2（cage compound 2）的合成开展重新研究后发现，光二聚体2（photodimer 2）以及此前推测已分离得到的中间体9（putatively isolated intermediate 9）的结构存在错误。上述两类产物需分别被重新归属为单体锥型化烯烃3（monomeric pyramidalized alkene 3）与螺环二氯化物10（spirocyclic dichloride 10）。