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9-(2-羟乙基)咔唑的合成与纯化工艺研究

Synthesis and Purification of 9-( 2-Ethoxyl ) Carbazol
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摘要 以咔唑和β-氯乙醇为原料,PEG1000和四丁基碘化铵为相转移催化剂,四氢呋喃或1,4-二氧六环为溶剂,Na2CO3和NaOH作碱,加入0.6 mmol碘化钠或碘化钾,40℃下反应2 h得标题化合物粗品。此粗品通过重结晶得到高纯度的标题化合物,并回收原料,考察了催化剂、碱、溶剂和温度对收率的影响,确定了最佳反应条件,化合物通过熔点和1HNMR进行了表征。 The process has been established for the production of crude 9-（2-ethoxyl） carbazol, with carbazol and β-chloro- ethyl alchohol as reactants,PEG 1000 and tetrabutyl ammoni- um iodide as phase transfer catalyst, ietrahydrofuran or 1,4- dioxanesodium as solvent ,carbonate and sodium hydroxide as base and 0.02 equivalent iodide/potassium iodide, under 40 ℃ for two hours. The crude product was purified via re- crystallization to afford 9-（2-ethoxyl） carbazol with high purity and the unreacted carbazol could be recycled. Some key fac- tors including catalyst, base, solvent and reaction temperature were investigated and the optimum conditions were obtained. Tthe compound was confirmed by melting point and 1 HNMR.
作者 汤清华 刘建波 吴丕业 戴鹏 吴海涓
机构地区 武汉理工大学化学工程学院
出处 《化学试剂》 CAS CSCD 北大核心 2014年第5期469-472,共4页 Chemical Reagents
关键词 9-(2-羟乙基)咔唑 咔唑 β-氯乙醇 相转移催化剂 9-（ 2-ethoxyl ） -carbazol carbazol β-chloroethyl alchohol phase transfer catalyst
分类号 O622.6 [理学—有机化学]
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参考文献15

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化学试剂
2014年 第5期

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