Acid-Free, Aminoborane-Mediated Ugi-Type Reaction Leading to General Utilization of Secondary Amines
作者:Yusuke Tanaka、Tomoaki Hasui、Michinori Suginome
DOI:10.1021/ol701570c
日期:2007.10.1
in the Ugi reaction by using aminoborane 1 as an iminiumiongenerator. Aldehydes, secondary amines, and isocyanides are coupled in the presence of 1 at room temperature, giving the corresponding alpha-amino amides in good yields. The nonacidicreaction conditions are beneficial for unique chemoselectivity, where the aldimine functionality is left intact in the present Ugi-typereaction.