作者:Yung-Lin Yang、Basker Rajagopal、Chien-Fu Liang、Chun-Chi Chen、Hsiu-Ping Lai、Chih-Hung Chou、Yen-Pin Lee、Yen-Ling Yang、Jing-Wen Zeng、Chun-Lin Ou、Po-Chiao Lin
DOI:10.1016/j.tet.2013.01.028
日期:2013.3
A one-pot two-step synthetic strategy for the preparation of aryl carboxamido sulfonic acid derivatives was developed. The synthesis started from m-(chlorosulfonyl)benzoyl chloride, which was reacted with amines, alcohols, thiols, or sodium azide and catalytic activator at rt to give the corresponding sulfonic acid derivatives in good yields. The short reaction times and the one-pot chemoselective
开发了一种一锅两步合成策略,用于制备芳基羧酰胺基磺酸衍生物。合成从m开始-(氯磺酰基)苯甲酰氯,在室温下与胺,醇,硫醇或叠氮化钠和催化活化剂反应,以高收率得到相应的磺酸衍生物。该过程的短反应时间和一锅化学选择性性质减少了不希望的副反应并提高了反应效率。在给电子体和缺乏电子的取代羧酰苯胺的情况下,哌啶已成功地掺入硫磺中,从而以46%(4-硝基苯胺)至接近定量(4-甲氧基苯胺)的产率获得了相应的磺酰胺。优化的条件应用于制备二芳基磺酰胺,磺酸酯,硫代磺酸盐和磺酰叠氮化物,它们是现代有机合成中非常重要和关键的结构。此外,