Frustrated Lewis Acid/Brønsted Base Catalysts for Direct Enantioselective α-Amination of Carbonyl Compounds
作者:Ming Shang、Xiaoxu Wang、Seung Moh Koo、Jennifer Youn、Jessica Z. Chan、Wenzhi Yao、Brian T. Hastings、Masayuki Wasa
DOI:10.1021/jacs.6b11908
日期:2017.1.11
A method for enantioselective direct α-amination reactioncatalyzed by a sterically "frustrated" Lewisacid/Brønsted base complex is disclosed. Cooperative functioning of the Lewisacid and Brønsted base components gives rise to in situ enolate generation from monocarbonyl compounds. Subsequent reaction with hydrogen-bond activated dialkyl azodicarboxylates delivers α-aminocarbonyl compounds in high