A simple method for<i>α</i>-position deuterated carbonyl compounds with pyrrolidine as catalyst
作者:Miao Zhan、Tao Zhang、Haoxi Huang、Yongmei Xie、Yuanwei Chen
DOI:10.1002/jlcr.3210
日期:2014.6.30
A simple, cost-effective method for deuteration of carbonyl compounds employing pyrrolidine as catalyst and D2O as deuterium source was described. High degree of deuterium incorporation (up to 99%) and extensive functional group tolerance were achieved. It is the first time that secondary amines are used as catalysts for H/D exchange of carbonyl compounds, which also allow the deuteration of complex pharmaceutically interesting substrates. A possible catalytic mechanism, based on the hydrolysis of 1-pyrrolidino-1-cyclohexene, for this pyrrolidine-catalyzed H/D exchange reaction has been proposed.
描述了一种简单、成本效益高的方法,通过使用吡咯烷作为催化剂和D2O作为氘源来实现羰基化合物的氘化。实现了高度的氘掺入(高达99%)和广泛的功能团耐受性。这是首次使用二级胺作为羰基化合物氢/氘交换的催化剂,该方法还允许对复杂的具有药学意义的底物进行氘化。基于1-吡咯啉-1-环己烯的水解,提出了这种吡咯啉催化氢/氘交换反应的可能催化机制。