An efficient organocatalytic enantioselective Michael addition of aryl methyl ketones with 2-furanones: highly functionalized chiral 3,4-substituted lactones
作者:Wei Wang、Junfeng Wang、Shuo Zhou、Qi Sun、Zemei Ge、Xin Wang、Runtao Li
DOI:10.1039/c2cc35488h
日期:——
The efficient asymmetric Michael addition reactions of aryl methyl ketones with 2-furanones were catalyzed by a simple and commercially available chiral 1,2-diphenyl-1,2-ethanediamine and p-TSA.H(2)O as cocatalyst with good yields (up to 95%) and excellent enantioselectivities (up to >99% ee). A bi-functional catalytic mechanism for the reaction was proposed.
一种简单且可商购的手性1,2-二苯基-1,2-乙二胺和p-TSA.H(2)O作为良好的收率催化了芳基甲基酮与2-呋喃酮的有效不对称Michael加成反应(高达95%)和优异的对映选择性(高达> 99%ee)。提出了该反应的双功能催化机理。