Tetrahedron Letters p. 4389 - 4392 (1997)
Update date:2022-07-29
Topics:
Kaes, Christian
Hosseini, Mir Wais
De Cian, Andre
Fischer, Jean
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.
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