[Structure: see text] In addition reactions of enecarbamates and enamides, extremely high turnover frequency of the catalyst was observed in comparison with that of silicon enolate addition reactions. This is presumably due to fast transfer of the proton that locates on the nucleophiles.
Core-Structure-Oriented Asymmetric Organocatalytic Substitution of 3-Hydroxyoxindoles: Application in the Enantioselective Total Synthesis of (+)-Folicanthine
作者:Chang Guo、Jin Song、Jian-Zhou Huang、Peng-Hao Chen、Shi-Wei Luo、Liu-Zhu Gong
DOI:10.1002/anie.201107079
日期:2012.1.23
yield and excellent enantioselectivity. This reaction enabled the enantioselective construction of hexahydropyrroloindole skeletons and the first catalytic enantioselective total synthesis of (+)‐folicanthine.
METHOD OF ENANTIOSELECTIVE NUCLEOPHILIC ADDITION REACTION OF AN ENAMIDE TO A GLYOXYLIC ACID ESTER
申请人:Japan Science and Technology Agency
公开号:EP1707556B1
公开(公告)日:2013-05-08
Highly Diastereo- and Enantioselective Reactions of Enecarbamates with Ethyl Glyoxylate To Give Optically Activesyn andantiα-Alkyl-β-Hydroxy Imines and Ketones