p-tert-Butyl thiacalix[4]arenes functionalized at the lower rim by o-, m-, p-amido and o-, m-, p-(amidomethyl)pyridine fragments as receptors for α-hydroxy- and dicarboxylic acids
Keywords: Molecular recognition; p-tert-Butyl thiacalix[4]arenes; α-Hydroxy- and dicarboxylic acids; UV-spectroscopy method;