ethyl 3-formyl-2,2-dimethylcyclopropanecarboxylate   、                                                                                      
diethyl trifluoromethylthio(chloro)methanephosphonate                                                                                                                                                              在
                                                                                                                                                                                 sodium hydride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 
ethyl 3(2-chloro,2-trifluoromethylthio-ethenyl)-2,2-dimethyl-cyclopropanecarboxylate (cis E/Z)   、                                                                                             ethyl 3(2-chloro,2-trifluoromethylthio-ethenyl)-2,2-dimethyl-cyclopropanecarboxylate   、                                                                                             ethyl 3(2-chloro,2-trifluoromethylthio-ethenyl)-2,2-dimethyl-cyclopropanecarboxylate (trans Z)