公开(公告)号：ZA200711016B

公开(公告)日：2008-09-25

申请号：ZA200711016

申请日：2007-12-19

Applicant: BASF AG

Inventor： JOACHIM GEBHARDT ,  SANDRA LOEHR ,  MICHAEL KEIL ,  THOMAS SCHMIDT ,  HENDRIK WEVERS JAN ,  HELMUT ZECH ,  RUDOLF HAEBERLE

IPC: C07D20090101

Abstract: The present invention relates to a process for preparing 1-alkyl-3-phenyluracils of the formula I where the variables R1 to R7 are as defined in the description by reacting 3-phenyluracils of the formula II and alkylating agents of the formula III R1-L1  III, with one another, wherein during the entire reaction the pH is kept in a range from 1 to 6 by adding base a little at a time.