Metal-Organocatalytic Tandem Azide Addition/Oxyamination of Aldehydes for the Enantioselective Synthesis of β-Amino α-Hydroxy Esters
作者:Pranab K. Shyam、Hye-Young Jang
DOI:10.1002/ejoc.201301915
日期:2014.3
The tandem reaction of α,β-unsaturated aldehydes with trimethylsilyl azide and 2,2,6,6-tetramethylpiperidin-1-yloxy in the presence of chiral amines and iron complexes as the catalysts in a one-pot reaction enantioselectively afforded β-azido α-oxyaminated aldehydes. Further synthetic modification of the product afforded β-amino α-hydroxy esters in good yields with good diastereo- and enantioselectivities
α,β-不饱和醛与三甲基甲硅烷基叠氮化物和2,2,6,6-四甲基哌啶-1-基氧基在手性胺和铁配合物作为催化剂的一锅反应中的串联反应对映选择性地得到β-叠氮基α-氧胺化醛。产物的进一步合成修饰以良好的收率提供了具有良好非对映选择性和对映选择性的 β-氨基 α-羟基酯。