Transition-Metal-Free Amine Oxidation: A Chemoselective Strategy for the Late-Stage Formation of Lactams
作者:Robert J. Griffiths、Glenn A. Burley、Eric P. A. Talbot
DOI:10.1021/acs.orglett.7b00021
日期:2017.2.17
A metal-free strategy for the formation of lactams via selective oxidation of cyclic secondary and tertiary amines is described. Molecular iodine facilitates both chemoselective and regioselective oxidation of C–H bonds directly adjacent to a cyclic amine. The mild conditions, functional group tolerance, and substrate scope are demonstrated using a suite of diverse small molecule cyclic amines, including
描述了通过选择性氧化环状仲和叔胺形成内酰胺的无金属策略。分子碘促进与环胺直接相邻的C–H键的化学选择性和区域选择性氧化。使用包括临床批准的药物支架在内的各种多样的小分子环胺,证明了其温和的条件,官能团耐受性和底物范围。