【摘 要】
:
Five novel azo calix[4]arenes were reported. The p-aminobenzaldehyde was diazotized with sodium nitrite in aqueous hydrochloride solution. Mono-, bis-, tris- an
【机 构】
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Department of Chemistry, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing
【出 处】
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Chinese Journal of Chemistry
论文部分内容阅读
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.
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 distal isomers) were obtained respectively by diazo-coupling in different molar ratios to calix [4] arene (1) under pH = 7.58.5 at 05 ° C. All (p-formylphenyl) azo calix [4] arenes were characterized by 1H NMR , 13C NMR, IR, MS (ESIMS) spectroscopies and elemental analysis.
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