Structural Aspects of the Enantioselectivity of Tartrates with ?-Amino-alcohol Salts part. I. Crystal structures of eleven tartaric-acid diesters
作者:Martin Egli、Max Dobler
DOI:10.1002/hlca.19890720532
日期:1989.8.9
the one observed in optically active tartaricacid (torsion angle OCCOH ca. 0°), The bindingsite for guest molecules is a parallelogram formed by two hydroxy and two carbonyl O-atoms, all lying on the same side of a mean molecular plane. There is one exception: the dimenthyl ester, which is the most enantioselective with a norephedrine guest, has one of the ester groups turned (torsion angle OCCOH ca