对甲氧基苯甲醛合成新工艺  

A new synthetic technology of p-methoxybenzaldehyde

作　　者：石玉香 王春林 林枫玲 

机构地区：[1]抚顺市化工研究设计院,辽宁抚顺113006 [2]大连实德塑胶有限公司,辽宁大连116113

出　　处：《应用化工》2001年第2期22-24,共3页Applied Chemical Industry

摘　　要：采用溶剂法 ,以对羟基苯甲醛和硫酸二甲酯为原料合成了对甲氧基苯甲醛 ,考察了反应时间、反应温度、醛和酯的摩尔比等因素对反应的影响。并通过改变碱的加料方式 ,充分地利用了硫酸二甲酯的第二个甲基 ,在不需要相转移催化剂的条件下 ,简化了工艺条件 。The new synthetic method of p methoxybenzaldehyde was investigated using p hydroxybenzaldehyde and dimethyl sulfate as the material in dimethyl benzene solvent, and the effects of reaction time、reaction temperature、ratio of reactants on the yield were examined. By changing the addition manner of the alkali, the second methyl of dimethyl sulfate was adequately utilized in the course of the reaction, thus in the conditions of no the phase transfer catalyst, the technology conditions were simplified, and the yield of the product was increased.

关 键 词：对甲氧基苯甲醛 对羟基苯甲醛 工艺 合成 

分 类 号：TQ244.1[化学工程—有机化工]