Chemical‐Reductant‐Free Electrochemical Deuteration Reaction using Deuterium Oxide
作者:Xu Liu、Ruoyu Liu、Jiaxing Qiu、Xu Cheng、Guigen Li
DOI:10.1002/anie.202005765
日期:2020.8.10
We report a method for the electrochemical deuteration of α,β‐unsaturated carbonyl compounds under catalyst‐ and external‐reductant‐free conditions, with deuteration rates as high as 99 % and yields up to 91 % in 2 h. The use of graphite felt for both the cathode and the anode was key to ensuring chemoselectivity and high deuterium incorporation under neutral conditions without the need for an external
我们报告了一种在无催化剂和无外部还原剂的条件下对α,β-不饱和羰基化合物进行电化学氘化的方法,氘化率高达99%,在2小时内产率高达91%。阴极和阳极同时使用石墨毡是确保在中性条件下无需外部还原剂的情况下化学选择性和高氘掺入的关键。与先前报道的使用化学计量的金属还原剂的氘代反应相比,该方法具有许多优点。机理实验表明,阳极处的O 2析出不仅消除了对外部还原剂的需求,而且还调节了反应混合物的pH值,使其保持中性。