N-(3-Bromo-5-Chloropyridin-2-yl)Pyridin-1-Ium-1-Aminide置于platinum On Activated Charcoal 甲酸:三乙胺 1:1体系中,用 乙腈 用作溶剂,化学反应 4.0H,以86%的收率获得2-氨基-3-溴-5-氯吡啶
参考文献:Halogenation Of Pyridinium-N-(2'-Pyridyl)Aminide: An Easy Synthesis Of Halo-2-Aminopyridines
标题:Halogenation Of Pyridinium-N-(2'-Pyridyl)Aminide: An Easy Synthesis Of Halo-2-Aminopyridines
摘要:The Regioselective Halogenation Of Pyridinium-N-(2'-Pyridyl)Aminide 1 With N-Chloro,Bromo Or Iodosuccinimide Under Mild Conditions Is Described. The Method,Combined With A Reduction Of The N-N Bond,Allows An Easy Preparation Of 5-Halo And 3,5-Dihalo-2-Aminopyridines 4.
Doi:10.1016/0040-4020(95)00478-Q