protonation/deuteration and reduction of in situ-formed enamines in the presence of water and pinacolborane was developed. Regioselective β-deuteration of tertiary amines was achieved with high chemo- and regioselectivity. D2O was used as a readily available and cheap source of deuterium. Mechanistic studies indicated that B(C6F5)3 could activate water to promote the protonation and reduction of enamines.
开发了一种高效的B(C 6 F 5)3催化串联质子化/
氘代和在
水和
频哪醇硼烷存在下还原原位形成的烯胺的方法。叔胺的区域选择性β-
氘化具有高的
化学和区域选择性。D 2 O被用作一种容易获得且廉价的
氘源。机理研究表明,B(C 6 F 5)3可以活化
水以促进烯胺的质子化和还原。