呋喃   、                                                                                      
三氟甲苯                                                                                                                                                                                                                                                                                                          生成                                                 
endo-7-(trifluoromethyl)-9-oxatricyclo<6.3.0.02,7>undeca-3,5,10-triene   、                                                                                             
endo-7-(trifluoromethyl)-9-oxatricyclo<6.3.0.02,7>undeca-3,5,10-triene   、                                                                                             7-(trifluoromethyl)-11-oxatricyclo<4.2.2.1
2,5>undeca-3,7,9-triene   、                                                                                             endo-2-(trifluoromethyl)-9-oxatricyclo<6.3.0.0
2,7>undeca-3,5,10-triene