Template synthesis, structure and properties of 4-pyridinylboron-capped iron(II) clathrochelate precursors for Bubnov diallylation reaction

Direct template macrobicyclization of three aliphatic, aromatic and dichlorine-containing a-dioxime molecules with 4-pyridinylboronic acid on a Fe2 + ion as a matrix afforded the first macrobicyclic tris-dioximates with 4-pyridinyl apical substituents. The macrobicyclic complexes synthesized were characterized using elemental analysis, spectroscopic methods, X-ray crystallography and cyclic voltammetry.