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Updated: Jul 5, 2026

Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
A set of homologous hetarylenediyne macrocycles by oxidative acetylene-acetylene coupling
Dorina M Opris1, Alexander Ossenbach, Dieter Lentz
1Institut für Chemie and Biochemie, Freie Universität Berlin, Berlin, Germany.
Abstract:
The synthesis of a set of bipyridine-containing macrocycles by oxidative acetylene-acetylene dimerization is described. The cycles are separated by preparative GPC, and the smallest homologue is analyzed by single-crystal X-ray diffraction, which shows a layered structure with channels that are partially filled with parts of the flexible chains of adjacent macrocycles. The cyclic trimer has a D3h symmetry and is a possible candidate for the formation of metal organic supramolecular assemblies on surfaces.
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