第 46 卷第 6 期 | | Vol. 46 No. 6 | 2016 年 12 月 | Dec 2016 |
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所属栏目:医药及中间体
2-甲基-2-硝基丙胺合成方法的改进 |
卞林芝1,杨 康1,纵朝阳1,孙雅泉2,3*
(1. 南京工业大学 化学工程系,江苏 南京 210000;2. 盐城师范学院 药学院,江苏 盐城 224007;3. 大丰盐师院海洋生物制药科技有限公司,盐城 江苏 224100;3. 大丰盐师院海洋生物科技有限公司,江苏 盐城 224100) |
摘 要:以对甲苯磺酸(2-甲基-2-硝基)丙酯为原料,首先与NaN3 发生叠氮化反应生成2-甲基-2-硝基叠氮丙烷,并通过对叠氮化反应条件进行工艺优化,从而获得目标化合物,将文献收率31%提高到88.6%。接着利用亚磷酸三甲酯代替三苯基膦发生施陶丁格反应,并用盐酸代替氢氧化钠进行水解制得2-甲基-2-硝基丙胺盐酸盐,通过中和游离出2-甲基-2-硝基丙胺化合物,收率达90.1%,该反应过程简单,收率较高,成本低,适合大规模生产。 |
关键词:对甲苯磺酸(2-甲基-2-硝基)丙酯;2-甲基-2-硝基叠氮丙烷;2-甲基-2-硝基丙胺 |
中图分类号:O623.731 文献标识码:A 文章编号:1009-9212(2016)06-0035-03 |
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Improved Method for Synthesis of 2-Methyl-2-nitropropan-1-amine |
BIAN Lin-zhi1, YANG Kang1, ZONG Chao-yang1, SUN Ya-quan2,3*
(1. School of Chemical Engineering, Nanjing University of Technology, Nanjing 210000, China; 2. Yancheng Teachers University, Yancheng 224007, China; 3. Jiangsu Marine Industry Research Institute, Dafeng 224100, China) |
Abstract:2-methyl-2-nitropropy-l-amine was obtained from 2-methyl-2-nitropropyl-4-methlbenzenesulfonate via two-step procedure. At first, 2-methyl-2-nitropropyl-4-methlbenzenesulfonate reacted with sodium azide to give 2-methyl-2-nitro-1-azide propane. The process was optimized by changing the temperature and solvent to increase to 88.6% compared to the yield of 31% to in the literature. And then, 2-methyl-2-nitropropy-l-amine was synthesized from the reaction between 2-methyl-2-nitro-1-azide propane and trimethyl phosphate to instead of triphenyl phosphine, and hydrochloric acid instead of sodium hydroxide hydrolysis with higher yield of 2-methyl-2-nitropropy-l-amine hydrochloride, free ing out free 2-methyl-2-nitropropanamine compound by neutralizated, the yield was 90.1%. The new procedure is simple, high yield, high purity, low cost and it is suitable for large-scale production. |
Key words:2-methyl-2-nitropropyl4-methylbenzenesulfonate; 2-Methyl-2-nitroazide propane; 2-methyl-2-nitropropy-l-amine |
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基金项目:江苏省前瞻性研究项目(72121632202A)。
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作者简介:卞林芝(1991-),女,江苏连云港人,硕士研究生,研究方向:药物合成。
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联 系 人:孙雅泉,硕士研究生导师,研究方向:药物合成(E-mail:981236661@qq.com)。
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收稿日期: 2016-11-1
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