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.
这项发明涉及一种新型制备N-取代2,4-二氨基-5-氟苯腈的方法,这些化合物在除草剂制备中被称为中间体,以及新型N-取代4-溴-6-氟-1,3-苯二胺,新型N-取代2-溴-4-氟-5-硝基苯胺和新型N-取代2-溴-4-氟苯胺作为该方法的中间体,以及它们的制备方法。