Stereoselective synthesis of β-amino ketones possessing β-[(2H-pyran-2-one)-3-yl]-β-chlorovinyl moiety via three-component direct Mannich-type reaction, catalyzed with ZrOCl2·8H2O
作者:Aziz Shahrisa、Maryam Zirak
DOI:10.1002/jhet.363
日期:——
Vilsmeier–Haack reaction and efficiently used in three component direct Mannich‐type reaction with different anilines, cyclic and acyclic ketonescatalyzed with zirconium oxychloride (ZrOCl2·8H2O) in ethanol at room temperature. Also, comenic aldehyde was used in direct Mannich‐type reaction at the same conditions. The reaction proceeds rapidly and affords the corresponding β‐amino ketones in good to high