| 摘要 |
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.
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