公开(公告)号：AU2012232940A1

公开(公告)日：2012-10-18

申请号：AU2012232940

申请日：2012-09-28

Applicant: BASF SE

Inventor： SCHMIDT THOMAS ,  HARDT JOACHIM ,  LOHR SANDRA ,  KEIL MICHAEL ,  WEVERS JAN HENDRIK ,  RACK MICHAEL ,  MAYER GUIDO ,  PLESCHKE AXEL

IPC: C07C303/38 ,  C07C201/12 ,  C07C205/58 ,  C07C303/40 ,  C07C311/51

Abstract: Abstract A process for preparing sulfonamides I O2N N "SO2NR 5R 6 0 2 N 5 where the variables are each as defined in the description, by reacting m-nitrobenzoyl chlorides II with amino sulfones III, under the influence of B equivalents of base IV, wherein, in step a), the amino sulfone III is reacted with B1 equivalents of base IV, and, in step b), the reaction mixture resulting from step a) is reacted with m-nitrobenzoyl chlorides II and B2 10 equivalents of base IV; where B, B1 and B2 are each as defined in the description.