有机化学 ›› 2008, Vol. 28 ›› Issue (05): 922-926. 上一篇    下一篇

研究简报

两种邻、间手性二醇的区域选择性取代反应研究

杨运旭*,季兴跃,刘世香,李文军,吴朝辉   

  1. (北京科技大学应用科学学院化学系 北京 100083)
  • 收稿日期:2007-06-20 修回日期:2008-01-10 发布日期:2008-05-20
  • 通讯作者: 杨运旭

Regioselective Substitution Reaction of Two Chiral 1,2-/1,3-Diols

YANG Yun-Xu*,JI Xing-Yue,LIU Shi-Xiang,LI Wen-Jun,WU Zhao-Hui   

  1. (Department of Chemistry, School of Applied Science, University of Science and Technology, Bei-jing 100083)
  • Received:2007-06-20 Revised:2008-01-10 Published:2008-05-20
  • Contact: YANG Yun-Xu

对两种邻、间手性二醇的区域选择性取代反应进行了研究. 以(R)-(-)-1,3-丁二醇(1)为起始原料, 在各种有机碱存在下, 先合成C1-位单磺酸酯, 进行C1-位的单醚化取代, 均有非区域选择性的单(双)取代物生成. 若用SOCl2处理1, 使其首先生成环状亚硫酸酯中间体5, 苯硫酚在2% Na2CO3存在下可和其发生高区域选择性取代反应, 生成 (R)-(-)-3-羟基-丁基苯硫醚(3). 以同样的方法使(S,R)-(+)-1-(6-氟-2-色满基)-1,2-乙二醇(6)和SOCl2反应生成环状亚硫酸酯(9), 再和苄胺反应, 也可发生高区域选择性取代, 生成 (S,R)-(+)-2-苄氨基-1-(6-氟-2-色满基)-乙醇(8). 该反应方法具有高区域选择性, 产物有高旋光纯度、高产率.

关键词: 二醇, 手性, 区域选择性, 取代反应

The regioselective substitution of two chiral 1,2-/1,3-diols was studied in this paper. (R)-(-)-Butane-1,3-diol (1) was firstly treated with SOCl2 to form a cyclo-sulfurous ester intermediate (5), which then reacted with thiophenol in the presence of 2% Na2CO3 to regioselectively afford (R)-(-)-3-hydroxybutyl phenylsulfide (3). Similarly, (S,R)-(+)-1-(6-fluoro-2-chromanyl)-1,2-ethanediol (6) reacted with SOCl2 and subsequently with benzylamine to form (S,R)-(-)-2-(benzylamino)-1-(6-fluoro-2-chromanyl)-ethanol (8). This method has advantages of high regioselectivity, high yield and high ee values.

Key words: chiral, regioselectivity, substitution reaction, diol