新型含吡啶环芳香三胺的合成

Synthesis of novel triamine containing pyridine ring

采用商品化的原料,在酸性介质中经改进的Chichibabin反应先合成含吡啶环的三硝基化合物,再用水合肼催化还原得到一种新型的含吡啶环BB’2型芳香三胺单体。通过红外光谱(FT-IR)、核磁共振(1H-NMR)、质谱(MS)、元素分析与熔点(m.p.)测试对产物进行了一系列的表征和测试。这种新型含吡啶环芳香三胺单体的成功合成将为一类新型超支化聚酰亚胺的制备奠定重要的基础。

A novel BB 2-type aromatic triamine containing pyridine ring was successfully synthesized by catalytic reduction of the trinitro compound obtained by a modified Chichibabin reaction in acidic medium with hydrazine hydrate.The structure of the product was respectively measured by FT-IR spectra,^1H-NMR spectra,MS,element analysis and melting point testing.The successful synthesis of the aromatic triamine containing pyridine ring laid an important foundation for preparation of a novel hyperbranched polyimide.