P-chirogenic organocatalysts: application to the aza-Morita–Baylis–Hillman (aza-MBH) reaction of ketimines
作者:Shinobu Takizawa、Emmanuelle Rémond、Fernando Arteaga Arteaga、Yasushi Yoshida、Vellaisamy Sridharan、Jérôme Bayardon、Sylvain Jugé、Hiroaki Sasai
DOI:10.1039/c3cc44549f
日期:——
The P-chirogenic organocatalysts were found to promote the enantioselective aza-MoritaâBaylisâHillman reaction of ketimines derived from acyclic α-keto esters. In the P-chirogenic organocatalyzed aza-MBH reactions, α,α-disubstituted α-amino acid derivatives were obtained in high yields with high enantioselectivities (up to 97% ee).
我们发现P-手性有机催化剂能够促进非环状α-酮酯衍生的酮亚胺的aza-Morita-Baylis-Hillman反应,实现高度的对映选择性。在P-手性有机催化的aza-MBH反应中,获得了高产率且高对映选择性的α,α-二取代α-氨基酸衍生物(最高可达97%对映体过量)。