Synthesis and anion-selective complexation of cyclophane-based cyclic thioureas

S Sasaki, M Mizuno, K Naemura…

Index: Sasaki, Shin-ichi; Mizuno, Masaaki; Naemura, Koichiro; Tobe, Yoshito Journal of Organic Chemistry, 2000 , vol. 65, # 2 p. 275 - 283

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Citation Number: 110

Abstract

Cyclic thiourea derivatives having three different types of cyclophane structure, ortho-meta, meta-meta, and meta-para, and a lariat-type thiourea, were synthesized, and their anion- binding ability was examined. The association constants for the complexation between the receptors and several anions in DMSO-d 6 were measured by the titration method using 1H NMR spectroscopy. All receptors, except for the meta-para cyclophane, exhibit selective ...