Stereoselective Synthesis of β-Amino Ketones via Direct Mannich-Type Reactions, Catalyzed with ZrOCl2·8H2O under Solvent-Free Conditions
作者:Bagher Eftekhari-Sis、Amir Abdollahifar、Mohammed M. Hashemi、Maryam Zirak
DOI:10.1002/ejoc.200600493
日期:2006.11
zirconium oxychloride (ZrOCl2·8H2O) efficiently catalyzes the directMannich-typereaction of a variety of in situ generated aldimines using aldehydes and anilines with ketones in a three-componentreaction under solvent-free conditions. The reaction proceeds rapidly and affords the corresponding β-aminoketones in good to high yields with good to excellent stereoselectivities. The catalyst can be recycled