VERFAHREN ZUR HERSTELLUNG VON N-SUBSTITUIERTEN 2,4-DIAMINO-5-FLUOR-BENZONITRILEN UND NEUE ZWISCHENPRODUKTE
申请人:Bayer CropScience AG
公开号:EP1244615B1
公开(公告)日:2004-08-11
Method for producing n-substituted 2,4-diamino-5-fluoro benzonitriles and novel intermediates
申请人:——
公开号:US20030017948A1
公开(公告)日:2003-01-23
The invention relates to a novel process for preparing N-substituted 2,4-diamino-5-fluoro-benzonitriles which are known as intermediates in the preparation of herbicides, to novel N-substituted 4-bromo-6-fluoro-1,3-phenylenediamines, to novel N-substituted 2-bromo-4-fluoro-5-nitro-anilines and to novel N-substituted 2-bromo-4-fluoro-anilines as intermediates for this process, and to processes for their preparation.