Imidazolylpyridine-In(OTf)3 catalyzed enantioselective allylation of ketimines derived from isatins†
Abstract
An enantioselective In(OTf)3-catalyzed allylation of ketimines derived from isatins in the presence of an imidazolylpyridine ligand is described. The reaction proceeded smoothly under mild conditions and resulted in 3-allyl 3-aminooxindoles with good yields and moderate to excellent enantioselectivities (up to 97% ee).