The Role of Spatial Complementarity in Chiral Recognition

Abstract
3, 5-Dinitrobenzoyl chloride and the cis and trans isomers of 3, 5-dinitrocinnamoyl chloride were used to acylate a variety of amines. The chromatographic behavior of these derivatives on several π-basic CSPs suggests that a correspondence in the size of the π-basic and π-acidic groups is an important factor in the observed enantioselectivity. As the size of the π-basic group in the CSP increases, the observed enantioselectivity of the N-(3, 5-dinitrocinnamoyl) derivatives also increases.