1-methyl-4-(1-phenyl-2-(2,2,3,3-tetramethylcyclopropylidene)vinyl)benzene   、                                                                                      
3-methoxy-1,3,3-triphenylprop-1-yne                                                                                                                                                              在
                                                                                                                                                                                 
scandium tris(trifluoromethanesulfonate)                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
1,2-二氯乙烷                                                                                  为溶剂,
                                                                                                                                                    反应 8.0h,
                                                                                                                以92%的产率得到3-(diphenylmethylene)-2,2-dimethyl-8-phenyl-1-(propan-2-ylidene)-8-(p-tolyl)-1,2,3,8-tetrahydrocyclopenta[a]indene