Tetrahedron letters

Design, synthesis and structural analysis of exoditopic macrocyclic ligands based on bipyridine units

C Kaes, MW Hosseini, A De Cian, J Fischer

Index: Kaes, Christian; Hosseini, Mir Wais; De Cian, Andre; Fischer, Jean Tetrahedron Letters, 1997 , vol. 38, # 25 p. 4389 - 4392

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Citation Number: 17

Abstract

The synthesis of new unsymmetrical and symmetrical macrocycles based on 2, 2′- bipyridine units bearing two or four phenyl groups at the 6 and 6′ positions was achieved by an oxidative coupling reaction using 1, 2-dibromoethane and organolithium derivatives of bipyridine. Among all new compounds prepared, two of them were structurally analysed in the solid state by X-ray diffraction.