[CpFe(dppe)(CN)]   、                                                                                      
长叶薄荷酮                                                                                                                                                              在
                                                                                                                                                                                 Et
2O-HBF
4                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以79%的产率得到(S)-2',3',4',5',6'-pentamethyl-1-(3-methyl-3-(1,4,4-trimethyl-2-methylenecyclohexyl)but-1-yn-1-yl)-2,2,5,5-tetraphenyl-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',4'-diene compound with neopentane (1:1)