间接电合成对甲氧基苯甲醛反应机理的研究  

Study on mechanism of synthesis of p-methoxybenzaldehyde by indirect electrooxidation

作　　者：刘双军[1] 胡瑞省[2] 

机构地区：[1]河北科技大学理学院,河北石家庄050018 [2]石家庄学院化学系,河北石家庄050035

出　　处：《河北科技大学学报》2005年第1期28-30,共3页Journal of Hebei University of Science and Technology

摘　　要：利用红外光谱(ＩＲ)研究了槽外合成对甲氧基苯甲醛的反应机理,结果证明:对甲基苯甲醚先氧化成对甲氧基苯甲醇,再氧化成对甲氧基苯甲醛并最终氧化成对甲氧基苯甲酸。间接电合成对甲氧基苯甲醛的优选条件:原料配比为ｎ(Ｃｅ4+)∶ｎ(ｐ ＣＨ3Ｏ-Ｃ6Ｈ4-ＣＨ3)=4∶3;反应温度为30℃;对甲氧基苯甲醛反应收率为96.8%。The mechanism of outside cell reaction of electrosynthesis of p-methoxybenzaldehyde was studied by Fourier-transform infrared (FTIR) absorption spectra. The results show that the reaction of Ce^(4+) with p-methoxytoluene reveals that the reaction proceeds in well-defined separated steps from p-methoxybenzyl alcohol,to p-methoxybenzaldehyde and eventually, to p-methoxybenzoic acid. The optimum conditions of outside cell reaction are as follows: (n(Ce^(4+))∶n(p-CH_3O)(C_6H_4)(CH_3)=4∶3); temperature: 30 ℃. The reaction yield of p-methoxybenzaldehyde is 96.8%.

关 键 词：对甲氧基苯甲醛 反应机理 甲基苯 证明 红外光谱 甲醚 再氧化 间接电合成 反应收率 苯甲醇 

分 类 号：O626.23[理学—有机化学] O621.3[理学—化学]