The asymmetric vinylogous Mannich reaction of dicyanoalkylidenes with α-amido sulfones under phase-transfer conditions
作者:Barbara Niess、Karl Anker Jørgensen
DOI:10.1039/b702172k
日期:——
The stereoselective vinylogous Mannich reaction of dicyanoalkylidenes under phase-transfer catalytic conditions utilizing stable alpha-amido sulfones as imine precursors is presented; a rigid pyrrolidinium salt acts as the phase-transfer catalyst, giving access to the amino alkylated products in generally good yield and up to 95% ee.
提出了使用稳定的α-酰胺基砜作为亚胺前体在相转移催化条件下二氰基亚烷基的立体选择性乙烯基类曼尼希反应。硬质吡咯烷鎓盐用作相转移催化剂,通常以较高的收率和高达95%ee的产率获得氨基烷基化产物。