Asymmetric substituent effect on the reaction of (R)- and (S)-indan-1-carboxylic acids with (S)-α-phenylethylamine derivatives
Abstract
In the reaction of (R)- and (S)-indan-1-carboxylic acids with (S)-α-phenylethylamines, the substituent effect is highly stereoselective and the equilibrium constants KSS and KRS are affected by inductive and resonance effects of the substituent at the para position of phenylethylamine rather than by steric hindrance.