Suzuki偶联反应合成1,3,5-三(4-甲基苯基)苯

Synthesis and characterization of 1,3,5-tri(4-methylphenyl)benzene

以三溴苯、对甲基苯硼酸和K_2CO_3为反应原料,N,N-二甲基甲酰胺为溶剂,钯碳为催化剂,通过Suzuki偶联反应制备1,3,5-三(4-甲基苯基)苯。采用核磁共振氢谱和碳谱分析、红外光谱分析及元素分析对所制产物进行了表征,确定了产物为1,3,5-三(4-甲基苯基)苯,该反应的产率约为31%。

In this thesis, 1,3,5-tris（4-methylphenyl）benzene （BTB） was synthesized through Suzuki couplingreaction, using 1,3,5-trihromo-benzene, 4-methylphenylboronic acid and potassium carbonate as raw materials, N,N-dimethyl formamide as solvent, palladium carbon as catalyst. The molecular structure of the prepared productwas identified by nuclear magnetic resonance spectroscopy （NMR）,Fourier Transform Infrared Spectroscopy（FFIR） and elemental analysis. The results showed that the product was 1,3,5-tris （4-methylphenyl）benzene witha relatively high purity, the yield was about 31%.