节点文献
Synthesis of (p-Formylphenyl)azo Calix[4]arenes
【Abstract】 Five novel azo calix[4]arenes were reported. The p-aminobenzaldehyde was diazotized with sodium nitrite in aqueous hydrochloride solution. Mono-, bis-, tris- and tetrakis(p-formylphenyl)azo calix[4]arenes (including proximal and distal isomers) were obtained respectively by diazo-coupling in different molar ratio to calix[4]arene (1) under pH=7.58.5 at 05 ℃. All (p-formylphenyl)azo calix[4]arenes were characterized by 1H NMR, 13C NMR, IR, MS (ESIMS) spectroscopies and elemental analysis.
【关键词】 calix[4]arene;
azo calix[4]arene;
diazo-coupling;
isomer;
NMR;
【Key words】 calix[4]arene; azo calix[4]arene; diazo-coupling; isomer; NMR;
【Key words】 calix[4]arene; azo calix[4]arene; diazo-coupling; isomer; NMR;
【基金】 Project supported by the National Natural Science Foundation of China (No. 90101018) and the Center of Materials Analysis of Nanjing University.
- 【文献出处】 Chinese Journal of Chemistry ,中国化学(英文版) , 编辑部邮箱 ,2004年05期
- 【分类号】O621
- 【被引频次】1
- 【下载频次】4