高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (12): 1367.

• 研究论文 • 上一篇    下一篇

二茂铁基α-二酮合成的新途径

师树简, 安蓉, 袁汉成   

  1. 北京化工学院应用化学系, 100029
  • 收稿日期:1990-03-09 出版日期:1990-12-24 发布日期:1990-12-24
  • 通讯作者: 师树简
  • 基金资助:

    国家自然科学基金

A New Route for the Synthesis of Ferrocenyl a-Diketones

Shi Shu-jian, An Rong, Yuan Han-cheng   

  1. Deportment of Applied Chemistry, Beijing Institute of Chemical Technology, Beijing, 100029
  • Received:1990-03-09 Online:1990-12-24 Published:1990-12-24

摘要: 本文报道根据Corey和Seebach“羰基反应活性逆转”原理合成二茂铁基α-二酮的新途径。用锂化二茂铁基二噻烷与一个酯反应,再经HgCl2-CdCO3水解得到标题化合物。共合成16种酰基二茂铁基二噻烷和13种二茂铁基α-二酮化合物。除两种外,其余均为新二茂铁衍生物。所有产物的结构都由元素分析、IR和1HNMR谱确定。本文讨论了反应中二茂铁衍生物在结构及性质上的特点和产物的IR和1HNMR谱。

关键词: 二茂铁, 二噻烷, &alpha, -二酮

Abstract: Anew route for the synthesis of ferrocenyl a-diketones has been developed. The method consists of reacting formylferrocene with propanedithiol-1, 3 to form ferrocenyl dithiane, which is lithiated with BuLi to yield lithiodithiane of ferrocene, and this intermediate is then treated with esters. The addition products of ferrocenyl dithiane are finally hydrolyzed in the presence of HgCl2-CdCO3 to give the subject prodcuts. All the synthesized ferrocenyl dithiane and a-diketoncs, except Ia and Ic, are new compounds with their structures comfirmed by elemental analysis, 1R and 1H NMR. The yields of the synthesis are moderately good. Only in two cases the yields are low, the reasons for which are proposed. It is also distinct from that reported in the previous literatures in two respects : there is no 2 : 1 addition product formed in the synthesis, and all the ferrocenyl acyl dithiancs arc very easily hydrolysable with HgCl2-CdCO3. These unexpected results are tentatively explained. Abrief discussion for the IR and 1H NMRof the products is given.

Key words: Ferrocene, Dithiane, a-Diketone

TrendMD: