Chinese Journal of Organic Chemistry ›› 2024, Vol. 44 ›› Issue (2): 533-549.DOI: 10.6023/cjoc202310005 Previous Articles     Next Articles

ARTICLES

亚硝酸异戊酯活化伯磺酰胺制备磺酰溴与磺酰氯

江港钟, 林嘉欣, 鲍晓光*(), 万小兵*()   

  1. 苏州大学材料与化学化工学部 江苏苏州 215123
  • 收稿日期:2023-10-07 修回日期:2023-11-02 发布日期:2023-11-07
  • 基金资助:
    国家自然科学基金(21973068); 国家自然科学基金(21971175)

Isoamyl Nitrite Activated Primary Sulfonamide to Sulfonyl Bromide and Sulfonyl Chloride

Gangzhong Jiang, Jiaxing Lin, Xiaoguang Bao(), Xiaobing Wan()   

  1. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123
  • Received:2023-10-07 Revised:2023-11-02 Published:2023-11-07
  • Contact: E-mail: xgbao@suda.edu.cn; wanxb@suda.edu.cn
  • Supported by:
    Natural Science Foundation of China(21973068); Natural Science Foundation of China(21971175)

Sulfonyl bromide and sulfonyl chloride are important compounds commonly used as building blocks in organic synthesis. This paper presents the successful synthesis of sulfonyl bromide or sulfonyl chloride from primary sulfonamide using isoamyl nitrite (iAmONO) as an activator, dibromantine (DBDMH) as a bromine source, or trichloroisocyanuric acid (TCCA) as a chlorine source. The method offers several advantages such as wide range of raw materials, compatibility with various substrates, high yield, and mild reaction conditions. It is suitable for both gram-scale preparations and subsequent derivations, demonstrating practical value. Mechanistic studies suggest that N,N-dihalosulfonamide is a potential intermediate in this process and isoamyl nitrite plays a crucial role in the conversion process.

Key words: primary sulfonamide, isoamyl nitrite, sulfonyl bromide, sulfonyl chloride