Selective electrochemical C O bond cleavage of β-O-4 lignin model compounds mediated by iodide ion
作者:Wei-Jing Gao、Chiu Marco Lam、Bao-Guo Sun、R. Daniel Little、Cheng-Chu Zeng
DOI:10.1016/j.tet.2017.03.027
日期:2017.4
The electrochemically oxidative cleavage of lignin β-O-4 model compounds mediated by iodide ion has been studied. The results indicate that electrolytic conditions play a predominant role in determining the distribution of cleavage products. The preparative-scale electrolysis proceeds in a simple undivided cell, employing a catalytic amount of NaI as the redox mediator and supporting electrolyte in
研究了由碘离子介导的木质素β-O-4模型化合物的电化学氧化裂解。结果表明,电解条件在确定裂解产物的分布中起主要作用。制备规模的电解在一个简单的不分隔电池中进行,采用催化量的NaI作为氧化还原介体并在甲醇中支持电解质。在这些条件下,将C β O键被选择性地与2,2-二甲氧基-2-芳基乙醛是主要产物裂解。在某些情况下,该反应可得到高产率的裂解产物。结果进一步证明,由卤化物介导的间接电解是用于化学转化的通用方法。