The catalytic enantioselective addition of allyltributylstannane to N-protected α-iminoesters promoted by silver(I) trifluoromethanesulfonate in the presence of chiral imine ligands was studied. After testing several chiral imines derived from 1,2-diaminocyclohexane and binaphthyl diamine a very simple experimental procedure was developed that allowed us to obtain optically active homoallylic amines
Enantioselective Intermolecular Carbon-Carbon Bond Formation of Glyoxylate Imines with Allylstannanes Catalyzed by tropos BIPHEP-Gold(I) Complexes with Au-Au Interactions
作者:Masafumi Kojima、Koichi Mikami
DOI:10.1002/chem.201103023
日期:2011.12.9
Interactions act: The enantioselective allylation reaction of glyoxylateiminescatalyzed by tropos DM‐BIPHEP–gold(I) complexes with an Au–Auinteraction was developed to give a higher enantioselectivity than the atropos DM‐BINAP–gold complexes without an Au–Auinteraction (see scheme).