2-(2-Ethoxy-2-phenyl-ethenyl)-1-pyrroline tetrafluoroborate                                                                                                                                                                                              以
                                                                                         
异丙胺                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以processing analogously to Example 1, there is obtained crude 2-[2-(isopropylimino)-2-phenylethylidene]-pyrrolidine的产率得到Isopropyl-[1-phenyl-2-pyrrolidin-(2Z)-ylidene-eth-(E)-ylidene]-amine