| 摘要 |
<p>HOE 81/F 191 of the disclosure: 1,3-Diaryl triazenes are prepared by reacting gaseous alkyl nitrites with primary aromatic monoamines in a liquid phase containing preferably a polar protic solvent, in the presence of a small quantity of an acid. The reaction products are partially final products, for example suitable for use as foamers in the plastics manufacture, partially intermediates suitable for use in various fields, for example the fields of polymers, dyestuffs and pharmaceuticals.</p> |
