学术
摘 要:
研究4,4’-联苯二甲酸的合成工艺。以联苯为原料,经氯甲基化、醛化及双氧水氧化制得4,4’-联苯二甲酸.结果表明,醛化反应时六次甲基四胺与4,4’-二（氯甲基）联苯的物质的量比为3.5∶1,氧化反应时温度控制80-85℃下反应8.0 h为较适宜的反应条件,在该条件下,三步反应的总收率达到38.2%（以联苯计）,w（4,4’-联苯二甲酸）〉98.0%.[著者文摘]
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文章出处:
《兰州理工大学学报》-2007年33卷3期 -69-71页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1673-5196（2007）03-0069-03
Synthesis of Biphenyl-4,4 ＇-dicarboxylic acid
GE Hong-yu, MA Wei-xing （Department of Chemical Engineering, Huaihai Institute of Technology, Lianyungang, 222005, China）
Abstract:
The synthetic technology of Biphenyl-4,4＇-dicarboxylic acid was studied. Using biphenyl as raw material, the biphenyl-4,4＇-dicarboxylic acid was synthesized by means of chloromethylation, hydroformylation and hydrogen peroxide oxidation of the biphenyl. The optimum reaction conditions were such that the amount of substance ratio of urotropine to 4,4＇-Bis（chloromethyl） biphenyl was 3.5：1 for hydroformylation, the reaction temperature of oxidation was 80-85℃ and the reaction time was 8. 0 hours. Under the optimum conditions, the overall yield of during this three-step reaction was 38.2% and the mass fraction of Biphenyl-4,4＇-dicarboxylic acid was 98.0%.[著者文摘]
Key words:
biphenyl; biphenyl-4,4＇-dicarboxylic acid; synthesis
基金资助:
本文得到江苏高校高新技术产业发展项目（JHB05-50）,淮海工学院自然科学研究基金项目的资助,在此表示感谢.
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