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J. Chem. Soc., Chem. Commun., 1975, 835 - 837, DOI: 10.1039/C39750000835

Chiral recognition by configurationally chiral cryptands

W. David Curtis, Dale A. Laidler, J. Fraser Stoddart and Graham H. Jones

1,1,4,4-Tetra-O-triphenylmethyl-2,2:3,3-bis-O- oxydiethylenedi-L-threitol [LL-(3)] and 1,2:1,2:5,6:5,6-tetra-O-isopropylidene-3,3:4,4- bis-O-oxydiethylenedi-D-mannitol [DD-(4)] exhibit enantiomeric differentiation in complexation equilibria towards (±)-(RS)--phenylethylammonium hexafluorophosphate.