methyl 2-[1-(2-dimethylamino-4-oxo-4,5-dihydro-1,3-selenazol-5-yl)ethylidene]hydrazine-1-carboxylate                                                                                                                                                              在
                                                                                                                                                                                 phenyltrimethylammonium tribromide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 5.0h,
                                                                                                                以75%的产率得到methyl 2-{1-[2-dimethylamino-4-oxo-1,3-selanazol-5(4H)-ylidene]ethyl}diazene-1-carboxylate