论文部分内容阅读
以杯[4]芳烃为起始原料,首先制得中间体杯[4]芳烃双溴代烷基衍生物,然后经微波辐射和阴离子交换,共得9种杯[4]芳烃咪唑盐衍生物,化合物的结构与构象经元素分析、IR、~1HNMR、~(19)FNMR、~(31)PNMR表征。研究了它们在对氯硝基苯氟化反应中的催化性能以及对K+的萃取性能。结果表明,这9种化合物在氟化反应中的催化效果良好,对氟硝基苯的收率为80.89%~92.67%;同时化合物对K+具有较好的萃取效果,其中以化合物25,27-二[4-(3-甲基咪唑)乙氧基]-26,28-二羟基-5,11,17,23-四叔丁基杯[4]芳烃六氟磷酸盐的萃取效果最好,萃取率可达75.45%。
Starting from calix [4] arene, the intermediate calix [4] arene bis (brominated alkyl) derivatives were prepared firstly, and then 9 calix [4] arene imidazole derivatives were obtained by microwave irradiation and anion exchange The structures and conformations of the compounds were characterized by elemental analysis, IR, ~ 1HNMR, ~ (19) FNMR and ~ (31) PNMR. Their catalytic performance in para-chloronitrobenzene fluorination and their extraction performance to K + were studied. The results show that the 9 compounds have good catalytic activity in the fluorination reaction, the yield of p-nitrofluorobenzene is 80.89% -92.67%; at the same time, the compound has a good extraction effect on K +, and the compounds 25,27- The extraction efficiency of bis [4- (3-methylimidazolium) ethoxy] -26,28-dihydroxy-5,11,17,23-tetra-tert- Extraction rate of up to 75.45%.