[1]章亚东,高晓蕾,蒋登高,等.聚乙二醇相转移催化合成对硝基苯甲醚工艺[J].郑州大学学报(工学版),2002,23(02):23-26.[doi:10.3969/j.issn.1671-6833.2002.02.007]
　Zhang Yadong,Gao Xiaolei,Jiang Denggao,et al.Polyethylene glycol phase transfer catalyzed synthesis of p-nitroanisole process[J].Journal of Zhengzhou University (Engineering Science),2002,23(02):23-26.[doi:10.3969/j.issn.1671-6833.2002.02.007]
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聚乙二醇相转移催化合成对硝基苯甲醚工艺()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
23卷
期数:
2002年02期
页码:
23-26
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Polyethylene glycol phase transfer catalyzed synthesis of p-nitroanisole process
作者:
章亚东; 高晓蕾; 蒋登高; 等.
郑州大学化工学院,河南,郑州,450002, 郑州大学化工学院,河南,郑州,450002, 郑州大学化工学院,河南,郑州,450002, 郑州大学化工学院,河南,郑州,450002, 郑州大学化工学院,河南,郑州,450002
Author(s):
Zhang Yadong; Gao Xiaolei; Jiang Denggao; etc
关键词:
相转移催化;  合成;  对硝基苯甲醚;  聚乙二醇
Keywords:
DOI:
10.3969/j.issn.1671-6833.2002.02.007
文献标志码:
A
摘要:
研究了不同分子量聚乙二醇(PEG)作为相转移催化剂由对硝基氯苯合成对硝基苯甲醚工艺,探讨了聚乙二醇分子量、分子结构中聚氧乙烯(-OCH2CH2-)单元链节数量(亦称平均聚合度)等对反应速率的影响,考察了氢氧化钠、催化剂浓度和用量等对反应的影响,阐述了PEG相转移催化反应机理,建立了PEG相转移催化条件下合成对硝基苯甲醚的适宜工艺条件,即温度78～80 ℃,n(PCNB)∶n(CH3OH)∶n(NaOH)∶n(P EG-400)=1∶3∶3∶(0.025～0.05),反应时间约7～8 h.此外,还测定了该条
Abstract:
The synthesis of p-nitroanisole from p-nitrochlorobenzene from p-nitrochlorobenzene with different molecular weights polyethylene glycol (PEG) as a phase transfer catalyst was studied, the effects of polyethylene glycol molecular weight and the number of polyoxyethylene (-OCH2CH2-) unit links (also known as average polymerization) in the molecular structure on the reaction rate were investigated, the effects of sodium hydroxide, catalyst concentration and dosage on the reaction were investigated, and the catalytic reaction mechanism of PEG phase transfer was elaborated. A suitable process condition for the synthesis of p-nitroanisole under the catalytic condition of PEG phase transfer was established, that is, the temperature was 78~80 °C, n(PCNB)∶n(CH3OH)∶n(NaOH)∶n(P EG-400)=1∶3∶3∶(0.025~0.05), and the reaction time was about 7~8 h

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更新日期/Last Update: 1900-01-01