Highly regioselective electrochemical synthesis of dioic acids from dienes and carbon dioxide
作者:Chuan-Hua Li、Gao-Qing Yuan、Xiao-Chen Ji、Xiu-Jun Wang、Jian-Shan Ye、Huan-Feng Jiang
DOI:10.1016/j.electacta.2010.06.057
日期:2011.1
A simple and efficient electrochemical method has been developed for highly regioselective synthesis of unsaturated 1,6-dioic acids from 1,3-dienes and CO2. The electrosynthesis was successfully carried out by using a nickel cathode and an aluminum anode in an undivided cell containing n-Bu4NBr-DMF electrolyte with a constant current under 3 MPa pressure of CO2, and the sole 1,4-addition products were
已经开发了一种简单有效的电化学方法,用于由1,3-二烯和CO 2高度区域选择性地合成不饱和1,6-二酸。在3 MPa的CO 2压力下,在恒定电流的n - Bu 4 NBr-DMF电解液的分隔电池中,使用镍阴极和铝阳极成功地进行了电合成,唯一的1,4-加成产物为获得的良品率极高。简要讨论了1,3-丁二烯与CO 2进行电二羧化反应的合理机理。此外,进一步的研究表明,通过在稀释的H 2中进行电还原,3-己烯-1,6-二甲酸可以很容易地转化为己二酸。SO 4解决方案。