第 47 卷第 1 期 |  | Vol. 47 No. 1 | 2017 年 2 月 | Feb 2017 |
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所屬欄目:農藥及中間體
2-氨甲基-3-氯-5-三氟甲基吡啶的制備 |
ZHANG Wen, YAO Xiao-long, ZHANG Hui-li, KANG Yong-li, WANG Xuan, LI Xiao-dong
(Tianjin Junkai Chemical Co., Ltd., Tianjin 300384, China) |
摘 要:采用一鍋法,以2-氰基甲基-3-氯-5-三氟甲基吡啶為原料,在甲醇中與氫氧化鈉70℃得到中間產(chǎn)物2-(3-氯-5-三氟甲基-2-吡啶)乙酰胺,之后再與氫氧化鈉和次氯酸鈉溶液在10℃反應制得2-氨甲基-3-氯-5-三氟甲基吡啶鹽酸鹽,收率98.57%。該方法避免高壓反應,原材料易得,收率較高。 |
關(guān)鍵詞:2-氨甲基-3-氯-5-三氟甲基吡啶;2-氰基甲基-3-氯-5-三氟甲基吡啶;次氯酸鈉 |
中圖分類(lèi)號:TQ2 文獻標識碼:A 文章編號:1009-9212(2017)01-0031-02 |
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Preparation of 2-Aminomethyl-3-chloro-5-trifluoromethyl pyridine |
張 文,姚曉龍,張慧麗,康永利,王 軒,栗曉東
(天津市均凱化工科技有限公司,天津 300384) |
Abstract:In a one-pot synthetic process, 2-cyanomethyl-3-chloro-5-trifluoromethylpyridine as the raw material, reacted with sodium hydroxide in mechanol at 70℃ to give 2-(3-chloro-5-trifluoromethyl-2-pyridine) acetamide, then reacted with sodium hydroxide and sodium hypochlorite at 10℃ to give 2-amino-3-chloro-5-trifluoromethyl pyridine hydrochloride at a yield of 98.57%. This method had the following advantages including lower reaction pressure, commercialized raw materials and high yield. |
Key words:2-amino-3-chloro-5-trifluoromethyl pyridine; 2-cyano-3-chloro-5-trifluoromethyl pyridine; sodium hypochlorite |
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作者簡(jiǎn)介:張 文(1988-),男,內蒙古巴彥淖爾人,研究方向:農藥、分子材料中間體合成。
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聯(lián) 系 人:張慧麗,研究方向:農藥醫藥中間體合成(E-mail: zhanghuili983@163.com)
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收稿日期:2017-01-25
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