有机化学 ›› 2012, Vol. 32 ›› Issue (01): 145-148.DOI: 10.6023/cjoc1108121 上一篇    下一篇

研究简报

稳定同位素标记15N-N,N-二甲基苯胺的合成

杨维成a, 齐庆瑞b, 刘卫霞a, 李美华a, 罗勇a   

  1. a 上海化工研究院技术开发中心 上海 200062;
    b 新疆教育学院职业教育分院 乌鲁木齐 830046
  • 收稿日期:2011-08-12 修回日期:2011-09-15 发布日期:2011-09-30
  • 通讯作者: 罗勇 E-mail:real-luoyong@hotmail.com
  • 基金资助:

    科技部转制院所专项(No. 2011EG116066)和质检总局科技专项(No. 2009IK134)资助项目.

Synthesis of Isotope-Labeled 15N-N,N-Dimethylaniline

Yang Weichenga, Qi Qingruib, Liu Weixiaa, Li Meihuaa, Luo Yonga   

  1. a Research & Development Center, Shanghai Research Institute of Chemical Industry, Shanghai 200062;
    b Branch of Professional Education, Xinjiang Normal University, Urumqi 830046
  • Received:2011-08-12 Revised:2011-09-15 Published:2011-09-30
  • Contact: Yong LUO E-mail:real-luoyong@hotmail.com
  • Supported by:

    Project supported by the Special Funds for System-Transformed Institutes of Science and Technology Ministry (No. 2011EG116066) and the Special Funds of the General Administration of Quality Supervision, Inspection and Quarantine (No. 2009IK134).

15NH4Cl 为同位素标记前体, 经与苯甲酰氯胺化、霍夫曼降解得到15N 标记苯胺, 15N 标记苯胺再与对甲苯磺酸酯进行甲基化反应, 合成得到一种重要的同位素标记基础试剂15N-N,N-二甲基苯胺. 以消耗的15NH4Cl 计, 三步反应总收率大于58.3%. 产品结构经红外(IR)、核磁(NMR)、高效液相(HPLC)、质谱(MS)等表征进行确定, 其化学纯度大于99.0%, 同位素丰度大于98.4% 15N.

关键词: 同位素标记, 合成, N,N-二甲基苯胺, 表征, 甲基化

An efficient synthesis of 15N-N,N-dimethylaniline with 15NH4Cl as the common substrate is reported. Ammoniation of benzoyl chloride with 15NH4Cl provided 15N-benzamide, which was converted to 15N-aniline by Hofmann degradation. Methylation of 15N-aniline with methyl p-toluenesulfonate provided 15N-N,N-dimethylaniline. The overall yield of 15N-N,N-dimethylaniline in three steps was 58.3% based on 15NH4Cl consumed. As-synthesized product was shown by IR, NMR, HPLC and MS to be target compound. Its chemical purity is higher than 99.0% and isotopic enrichment is higher than 98.4% 15N.

Key words: isotope-labeled, synthesis, N,N-dimethylaniline, characterization, methylation