公开(公告)号：EP4311828A1

公开(公告)日：2024-01-31

申请号：EP22186856.5

申请日：2022-07-26

申请人： BASF SE ,  Lianhe Chemical Technology Co., Ltd.

发明人： Rack, Michael ,  Xie, Enrique ,  Dang, Weijie ,  Li, Dave ,  Yi, Kaiqiang ,  Kaduskar, Rahul ,  Gockel, Birgit ,  Shinde, Harish ,  Goetz, Roland ,  Knoll, Daniel Maximilian

IPC分类号： C07D213/61 ,  C07D213/73

摘要： The present invention relates to a process for the chlorination of 3-halopyridine with molecular chlorine in the presence of water under UV light irradiation in the vapor phase. The present invention further relates to a multi-step process for producing 5-chloro-3,6-difluoropyridin-2-amine.