公开(公告)号：EP2606028A1

公开(公告)日：2013-06-26

申请号：EP11746178.0

申请日：2011-08-16

申请人： Lonza Ltd

发明人： BIELER, Nikolaus ,  ELLINGER, Stefan ,  FURRER, Martina ,  LADNAK, Viktor ,  MÜLLER, Constanze ,  SCHMID, Leo ,  ZUR TÄSCHLER, Cornelia

IPC分类号： C07C209/74 ,  C07C211/52 ,  C07C211/64

CPC分类号： C07C209/74 ,  Y02P20/582 ,  C07C211/52

摘要： A process for the chlorination of alkylanilines is provided allowing a highly selective chlorination in the meta-position of the aromatic ring. This is achieved by reacting a mixture comprising the alkylaniline and sulfuric acid with chlorine. This process allows a meta-chlorination with a selectivity of more than 90%.