A solvent-free method for the direct synthesis of Cbz-protected β-amino ketones using triphenylphosphine dibromide
作者:Pori Buragohain、Partha Pratim Saikia、Nabin C. Barua
DOI:10.1016/j.tetlet.2013.04.105
日期:2013.7
Triphenylphosphinedibromide (TPPDB) has been found to be a very effective catalyst for the one pot three-component Mannich reactions of aryl aldehyde, acetophenone, and benzyl carbamate under solvent-free condition at room temperature. The advantageous features of this methodology are operational simplicity, shorter reaction time, cost-effectiveness, and excellent yields. The catalyst possesses distinct