carbonyl(cyclopentadienyl)(dimethylphenylphosphane)cobalt 、
2-二氮杂-1-苯乙酮 以
丙酮 为溶剂,
以24%的产率得到2',3',4',5',6'-pentamethyl-2-methylene-4-phenyl-1-(2-phenylpropan-2-yl)-1l11,2'l5,3'l5,4'l5,5'l5-spiro[cyclopentane-1,1'-pentacyclo[2.2.0.01,3.01,5.02,6]hexane]-2',3,4'-triene