Thioamides and selenoamides with chirality solely due to hindered rotation about the C–N bond: enantioselective complexation with optically active hosts
作者:Teresa Olszewska、Aleksandra Pyszno、Maria J. Milewska、Maria Gdaniec、Tadeusz Połoński
DOI:10.1016/j.tetasy.2005.09.017
日期:2005.11
Several thioformamides and selenoformamides, with chirality solely due to restricted rotation about the C–N bond, were resolved to enantiomers by inclusion crystallization with optically active diols (TADDOLs). The absolute configuration of the guest molecules was deduced from the X-ray crystal structures of the inclusion complexes. The optical activity of the resolved compounds is manifested by their