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6-氯-2(1H)-吡啶酮的合成和表征
SYNTHESIS AND CHARACTERIZATION OF 6-CHLORO-2(1H)-PYRIDINOL
【摘要】 以吡啶为起始原料,先经光氯化法合成中间体2,6-二氯吡啶,最佳反应条件是:n(吡啶):n(氯气)= 1:2.2,氯化温度为190~210℃,再以乙醇为介质在加压下时行醇解合成了6-氯-2(1H)-吡啶酮,产率达85%,通过元素分析、红外光谱、质谱等对6-氯-2(1H)-吡啶酮的结构进行了表征。
【Abstract】 2,6-Dichloropyridine was synthesized from chlorination of pyridine under UV irradiation in the presence of chlorine under the optimal conditions:pyridine:chlorine (molar ratio)=1:2.2 and 190~210℃.Then 2,6-dichloropyridine was hydrolyzed by base and converted into 6-chloro-2(1H)- pyridinol with 85% yield under pressure.The final product was confirmed by elemental analysis,IR, ~1H NMR and MS.The results showed that the synthetic method was quite reliable.
【关键词】 吡啶;
光氯化2,6-二氯吡啶;
6-氯-2(1H)-吡啶酮;
【Key words】 pyridine; photochlorination; 2,6-dichloropyridine; 6-chloro-2(lH)-pyridinol;
【Key words】 pyridine; photochlorination; 2,6-dichloropyridine; 6-chloro-2(lH)-pyridinol;
【基金】 国家“八五”重大科技攻关项目的下游系列产品的研究项目之一(85-504-21-01)。
- 【文献出处】 精细石油化工 ,Speciality Petrochemicals , 编辑部邮箱 ,2006年02期
- 【分类号】O626.32
- 【被引频次】1
- 【下载频次】160