| 摘要 |
Compounds of the formula <IMAGE> are described in which X is hydrogen, -NO2 or -NH2, and Y is -CH3, -COOH, -CONH2, -NH2 or -N=N-Z, where the group Z is <IMAGE> with the proviso that, if Y is the group -N=N-Z, X is only -NO2, and if Y is the group -CH3, X is only hydrogen. A preferred compound is that of the formula <IMAGE> which is prepared in a multistep process in which the compounds of the general formula (I) are also produced. The 3,4-diamino compound obtained is suitable for the production of high temperature-resistant polycondensates and mouldings, films and fibres. |
