Abstract

Cycloveratrylenes and cryptophanes 1– 12 are chiral compounds and were studied in their racemic form. Although most of them are non-polar oligocyclic ethers, their enantiomers can be easily differentiated by 1H and 13C NMR spectroscopy in the presence of an equimolar amount of Rh 2[( R)-(+)-MTPA] 4 (the standard protocol for the dirhodium method). Coordination mechanisms were studied. Various functionalities (sulfide, various ethers, olefin and phenol) were also sequenced according to their donor properties.

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