非溶剂法合成3,4-二氯苯甲酸研究

非溶剂法合成3,4-二氯苯甲酸研究 Study on Synthesis of 3,4-Dichlorobenzoic Acid in Non-Solvent 梁 芸 LIANG Yun 1 2 first-author 马玉龙 MA Yu-long 1 2 武汉大学化学与分子科学学院 武汉大学化学与分子科学学院 College of Chemistry and Molecular Sciences,Wuhan University College of Chemistry and Molecular Sciences,Wuhan University 武汉大学化学与分子科学学院,湖北,武汉,430072 武汉大学化学与分子科学学院,湖北,武汉,430072 在自制催化剂及无溶剂存在的条件下用空气氧化3,4-二氯甲苯合成了3,4-二氯苯甲酸,并研究了影响反应的因素.结果表明:原料和主催化剂的重量比为1000:3,温度在165℃,压强为1.35MPa为较适宜的反应条件.反应时间10h时,转化率为51.2％,产率达到87.4％. Synthesis of 3,4-dichlorobenzoic acid from 3,4-dichlorotoluene by air oxidation with Co-Br salts and self-made cocatalyst in the condition of nonsolvent was studied. The results show that the suitable condition is: weight ratio of the material to the main catalyst, 1000:3; temperature, 165℃; pressure, 1.35 MPa; reaction time, 10 h; conversion, 51.2%; yield,87. 4%. 3,4-二氯甲苯 3,4-二氯苯甲酸 液相氧化 液相氧化催化剂 3,4-dichlorotoluene 3,4-dichlorobenzoic acid liquid-phase oxidation liquid-phase oxidation catalyst O625.53 2002-02-01 2021-04-01 2