Rh-Catalyzed Asymmetric Hydrogenation of α-Aryl Imino Esters: An Efficient Enantioselective Synthesis of Aryl Glycine Derivatives
作者:Gao Shang、Qin Yang、Xumu Zhang
DOI:10.1002/anie.200601540
日期:2006.9.25
Metal-Free N–H Insertions of Donor/Acceptor Carbenes
作者:Stephanie R. Hansen、Jillian E. Spangler、Jørn H. Hansen、Huw M. L. Davies
DOI:10.1021/ol3020754
日期:2012.9.7
Synthetically useful transformations arise from the thermal decomposition of aryldiazoacetates in the presence of primary and secondary amines without the use of a metal catalyst. Thermally generated, free donor/acceptor carbenes directly undergo N-H insertion with amines through selective aza-ylide formation to afford a variety of a-amino esters in 53-96% yields.