1-cyano-2-((trimethylsilyl)methyl)allyl acetate   、                                                                                      
4-methyl-N-(4-trifluoromethylbenzylidene)-benzenesulfonamide                                                                                                                                                              在
                                                                                                                                                                                 O,O'-(R)-(1,1'-dinaphthyl-2,2'-diyl)-N-((R,R)-2,5-diphenylazetidine)phosphoramidite   、                                                                                                  bis(dibenzylideneacetone)-palladium
(0)                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                                                        以98%的产率得到(E)-2-(1-tosyl-5-(4-(trifluoromethyl)phenyl)pyrrolidin-3-ylidene)acetonitrile