Abstract
Two new chiral calix[4]arene derivatives containing tartaric acid ester moieties were synthesized. The chiral calix[4]arenes are in a ‘ cone’ conformation according to NMR spectroscopy. The chiral recognition capabilities of 1– 4 toward the guests, 1,2-propanediol and serine methyl ester hydrochloride (SerOMe), were investigated ( 1H NMR spectroscopy). The extraction properties of compounds 1 and 2 toward selected α-amino acid methyl esters were also studied.
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