以芳胺和酚为原料,用重氮盐耦合法合成了3种偶氮化合物,并用红外光谱表征了其结构,对其合成条件、酸碱变色性及光学性能进行了研究。结果表明:合成的化合物结构与目标产物一致,合成该化合物较为适宜的条件是:低温(<5℃),弱碱性;这3种化合物易溶于水,具有良好的酸碱变色性,且可与一些金属离子络合,表现出良好的光学性能,是一类性能优良的水溶性偶氮化合物。 Aromatic amines and phenols were used as raw materials. Three kinds of azo compounds were synthesized by diazonium salt coupling method. Their structures were characterized by FTIR, and their synthesis conditions, acid - base discoloration and optical properties were also studied. The results show that the structure of the synthesized compounds is consistent with the target product. The suitable conditions for the synthesis of the compounds are: low temperature (<5 ℃), weakly alkaline; these three compounds are easily soluble in water, have good acid-base discoloration and With some metal ions complex, showing good optical properties, is a class of water-soluble azo compounds.