有机化学 ›› 2020, Vol. 40 ›› Issue (9): 2772-2777.DOI: 10.6023/cjoc202005073 上一篇    下一篇

研究论文

镍(II)催化芳香烃氧化-偶联反应

吴杰庆, 顾洁凡, 陈钦睿, 马鸿飞, 李玉峰   

  1. 南京工业大学化学与分子工程学院 南京 211816
  • 收稿日期:2020-05-26 修回日期:2020-06-19 发布日期:2020-07-17
  • 通讯作者: 李玉峰 E-mail:yufengli@njtech.edu.cn

Ni(II)-Catalyzed Oxidative Coupling of Arenes

Wu Jieqing, Gu Jiefan, Chen Qinrui, Ma Hongfei, Li Yufeng   

  1. College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816
  • Received:2020-05-26 Revised:2020-06-19 Published:2020-07-17

以二叔丁基过氧化物为氧化剂,1,4-二氮杂二环[2.2.2]辛烷(DABCO)为助催化剂,通过乙酰丙酮镍催化的芳香烃偶联反应,建立了一种制备联苄化合物的方法.该方法对不同芳烃底物具有耐受性,其中,异丙苯最容易发生反应,联苄的收率达到73%.优化条件下芳香烃与环烷烃也可发生交叉偶联作用,但伴随两种底物的自偶联反应.该方法能有效抑制醇、醛和酸的产生.

关键词: 芳香烃, 偶联反应, 二叔丁基过氧化物, 乙酰丙酮镍, 联苄

A protocol for the synthesis of bibenzyls via nickel acetylacetonate-catalyzed coupling of arenes was devloped using di-tert-butylperoxide as the oxidant with the asistance of 1,4-diazabicyclo[2.2.2]octane (DABCO). The process tolerated to different substrates, among of which, isopropylbenzene provided the most satisfactory yield of bibenzyls in 73% yield. The cross-coupling of arenes with cycloalkanes was also realized under the optimal reaction conditions but accompanied with the self-coupling of substrates. The method could effectively restrain the formation of alcohol, aldehyde, acid.

Key words: arene, coupling, di-tert-butylperoxide, nickel(II) acetylacetonate, bibenzyl