Oxidant-Free Conversion of Cyclic Amines to Lactams and H<sub>2</sub> Using Water As the Oxygen Atom Source
作者:Julia R. Khusnutdinova、Yehoshoa Ben-David、David Milstein
DOI:10.1021/ja500026m
日期:2014.2.26
Direct conversion of cyclic amines to lactams utilizing water as the only reagent is catalyzed by pincer complex 2. In contrast to previously known methods of amine-to-amide conversion, this reaction occurs in the absence of oxidants and is accompanied by liberation of H-2, with water serving as a source of oxygen atom. Formation of a cyclic hemiaminal intermediate plays a key role in enabling such reactivity. This represents an unprecedented, conceptually new type of amide formation reaction directly from amines and water under oxidant-free conditions.