偏苯三甲酸酐分别与4,4′-二氨基二苯甲烷、4,4′-二氨基二苯砜、4,4′-二氨基二苯醚,通过亚胺化反应,合成了3种含亚胺环结构的二元酸,在Lewis碱催化下通过酰化,得到了3种含亚胺环结构的二元芳酰氯.用FT-IR1、H-NMR1、3C-NMR等对3种芳酰氯进行了结构表征.结果表明,合成的目标产物具有预期结构,并有较高的产率.
Three novel aromatic dicarboxylic acid chloride (DIDC) containing imido group were synthesized with high yields(90.5 % -95.3 % ) by acidylated the corresponding diimide-diacid (DIDA) in the presence of thionyl chloride and N,N′-dimethyl-formamide (DMF) as catalyst. DIDA were prepared from trimellitic anhydride with 4, 4′-diaminodiphenylmethane( DDM ), 4, 4′-diaminodiphenylsulfone ( DDS ) and 4, 4′-di -aminodiphenylether ( DDO ) respectively. DIDA and DIDC were obtained as designed and confirmed by FT-IR, 1^H-NMR and 13^C-NMR advanced analytic technology.