Recueil des Travaux Chimiques des Pays-Bas p. 353 - 359 (1992)
Update date:2022-08-05
Topics:
Loon, Jan-Dirk van
Heida, Jan F.
Verboom, Willem
Reinhoudt, David N.
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 520M-1, when the self-association of the barbiturate is taken into account.
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