Seven macrocyclic ethers containing 2,2′-substituted-1,1′-binaphthyl units as chiral barriers connected through different combinations of OCH2CH2OCH2-CH2O, O[CH2]5O, m-C6H4(CH2O)2 and 2,6-C5H3N(CH2O)2(substituted pyridyl) units complex differently with the enantiomers of the hexafluorophosphate salts of racemic methyl phenylglycinate and methyl valinate.
G. W. Gokel, J. M. Timko and D. J. Cram, J. Chem. Soc., Chem. Commun., 1975, 444 DOI: 10.1039/C39750000444
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