Kinetic Resolutions of Indolines by a Nonenzymatic Acylation Catalyst

The first method for the kinetic resolution of indolines through catalytic N-acylation is described. To improve the selectivity factor, new planar-chiral PPY-derived catalysts were synthesized, wherein the chiral environment was systematically modified. This work provides a rare example of a nonenzyme-based acylation catalyst for the kinetic resolution of amines.