Author/Authors :
M.A. Kliachyna، نويسنده , , O.A. Yesypenko، نويسنده , , V.V. Pirozhenko، نويسنده , , S.V Shishkina، نويسنده , , O.V. Shishkin، نويسنده , , V.?. Boyko، نويسنده , , V.I. Kalchenko، نويسنده ,
Abstract :
Both enantiomers of inherently chiral calixarene carboxylic acids with ABCD substitution patterns have been prepared by the benzoylation of 25-propoxy-27-(R)-N-(α-phenylethyl)amidomethyloxycalix[4]arene followed by resolution of the diastereomers formed, monobromination of them and removal of the benzoyl and α-phenylethylamide auxiliary groups. The absolute configuration of the calixarenes obtained has been established by X-ray analysis. Preliminary study of the chiral recognition properties of calixarene carboxylic acid was performed.
Keywords :
Diastereomers , Inherently chiral calixarenes , Enantiomers , Optical resolution
