Calix[4]pyrrole dimers bearing rigid spacers: towards the synthesis of cooperative anion binding agents

• Published in: Tetrahedron letters Vol. 41; no. 35; pp. 6731 - 6736
• Main Authors: Sato, Wataru, Miyaji, Hidekazu, Sessler, Jonathan L
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier Ltd 26.08.2000; Elsevier
• Subjects: calixpyrrole; Chemistry; Chemistry, Organic; cooperative anion binding; C–C bond formation; dimer; Physical Sciences; Science & Technology; cooperative anion binding; calixpyrrole; dimer; C–C bond formation; C-C bond formation; RECOGNITION; CHEMISTRY; PORPHYRIN; RECEPTORS

Calix[4]pyrrole dimers ( 2, 5, and 6), potential hosts for anionic guests, were synthesized by a procedure involving a palladium(0) catalyzed C–C bond formation process. In the case of 2, a dimer linked via a rigid di-ethynyl spacer, a detailed study of carboxylate anion binding was carried out usin...