Enantioselective Organocatalytic Multicomponent Synthesis of 2,6-Diazabicyclo[2.2.2]octanones
作者:Maria del Mar Sanchez Duque、Olivier Baslé、Yves Génisson、Jean-Christophe Plaquevent、Xavier Bugaut、Thierry Constantieux、Jean Rodriguez
DOI:10.1002/anie.201306656
日期:2013.12.23
compounds: The title reaction of β‐ketoamides, acrolein, and aminophenols, catalyzed by a bifunctional thiourea‐tertiary amine organocatalyst, enables the preparation of an enantioenriched diazabicyclo[2.2.2]octanone (2,6‐DABCO) scaffold. The chemoselective reaction sequence installs five new bonds and three stereocenters, two of which are contiguous tetrasubstituted centers, with excellent yields and high
三星级化合物:双功能硫脲-叔胺有机催化剂催化的β-酮酰胺,丙烯醛和氨基酚的标题反应能够制备对映体富集的二氮杂双环[2.2.2]辛酮(2,6-DABCO)骨架。化学选择性反应序列安装了五个新键和三个立体中心,其中两个是连续的四取代中心,具有出色的收率和高水平的立体控制。MS =分子筛。