| abstract |
The invention relates to a process for the preparation of 1,5-naphthalenediamine and the intermediates obtainable in the course of the process 4- (2-nitrophenyl) butyronitrile, 5-nitro-3,4-dihydro-1 (2H) -naphthylimine, 5- Nitroso-1-naphthylamine, 5-nitro-1-naphthylamine, 4- (2-aminophenyl) butyronitrile, 5-amino-3,4-dihydro-1 (2H) -naphthalenimine, 4- (2-nitrophenyl) butyric acid ethyl ester and 4- (2-nitrophenyl) butyric acid amide. |