Calix[4]arenes as building blocks for molecular receptors


Loon, Jan-Dirk van and Heida, Jan F. and Verboom, Willem and Reinhoudt, David N. (1992) Calix[4]arenes as building blocks for molecular receptors. Recueil des Travaux Chimiques des Pays-Bas (1920), 111 (7-8). pp. 353-359. ISSN 0165-0513

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Abstract:Molecular receptors for organic molecules are described in which calix[4]arene is used as a molecular platform rather than for its cavity. This is illustrated by the synthesis of a receptor for barbiturates, a calix[4]arene in a cone conformation containing two diaminotriazine moieties at the upper rim. This receptor (9) forms a molecular cleft in which phenobarbital complexes by hydrogen bonding both triazine rings. The association constant K is 520 M 1, when the self-association of the barbiturate is taken into account.
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Copyright:© 1992 Wiley
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