啶虫脒中间体N-(6-氯-3-吡啶甲基)甲胺合成工艺优化

发布时间:2019-08-14 13:55:43

啶虫脒中间体N-6--3-吡啶甲基)甲胺合成工艺优化

作者:王奇 侯申础 杨凡 王鑫 施武

来源:《中国化工贸易·中旬刊》2019年第01

        摘要:对N-6--3-吡啶甲基)甲胺的合成工艺进行优化。以2--5-氯甲基吡啶、一甲胺为原料,在TEBAC的作用下合成N-6--3-吡啶甲基)甲胺。考察投料比、反应温度、滴加时间、溶剂等因素對N-6--3-吡啶甲基)甲胺收率的影响;研究发现,最佳反应条件为2--5-氯甲基吡啶:一甲胺:TEBAC=170.012,滴加温度20-30°C,滴加时间2h,保温温度20-30°C,反应时间4hr,产品纯度可达96%,产品收率可达85-87%

        关键词:杀虫剂;N-6--3-吡啶甲基)甲胺;工艺优化

        An Optimization of synthesis process of N-6-chloro-3-pyridylmethylmethylamine

        Jiangsu Yangnong Chemical Group Co. LtdJiangsu Yangzhou 225009

        AbstractThe synthesis process of N-6-chloro-3-pyridylmethylmethylamine was optimized. N-6-chloro-3- pyridylmethylmethylamine was synthesized from 2-chloro-5-chloromethylpyridine and monomethylamine under the action of TEBAC. The effects of feed ratio reaction temperature dripping time and solvent on the yield of N-6-chloro-3-pyridylmethylmethylamine were investigated. The results showed that the optimum reaction conditions were 2-chloro-5-chloromethylpyridine monomethylamine TEBAC = 170.012 dripping temperature 20-30 °C dripping time 2 h holding temperature 20-30 °C and reaction time 4 hr. The purity and yield of the product can reach 96% and 85-87%.

啶虫脒中间体N-(6-氯-3-吡啶甲基)甲胺合成工艺优化

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