η5-cyclopentadienylbis(ethene)cobalt 、
1,6-diphenyl-1,3,5-hexatriene 以
petroleum ether 为溶剂,
以72%的产率得到(E)-2',3',4',5'-tetramethyl-2'-phenyl-5'-styryl-1l13,2'l5,3'l5,4'l5,5'l5-spiro[pentacyclo[2.2.0.01,3.01,5.02,6]hexane-1,1'-tricyclo[2.1.0.01,3]pentane]-2,2',4,4'-tetraene