Zinc-mediated enantioselective addition of terminal 1,3-diynes to N-arylimines of trifluoropyruvates
作者:Fa-Guang Zhang、Hai Ma、Yan Zheng、Jun-An Ma
DOI:10.1016/j.tet.2012.05.086
日期:2012.9
A facile and effective enantioselectiveaddition of terminal 1,3-diynes to acyclic α-CF3 ketimine esters has been developed by using zinc/Binol complexes. The reaction works well with a variety of aromatic-, aliphatic- and silyl-substituted diynes, providing the desired products in up to 97% yield and 97% enantiomeric excess.