1613641-38-5Relevant academic research and scientific papers
Clathrochelates meet phosphorus: Thiophosphorylation of Fe(ii) dichloroclathrochelate precursor, synthesis of N,S-donor macrobicyclic ligands and their Pd(ii) complexes as potent catalysts of Suzuki cross-coupling reaction
Artyushin, Oleg I.,Odinets, Irina L.,Matveeva, Ekaterina V.,Vologzhanina, Anna V.,Varzatskii, Oleg A.,Lyubimov, Sergey E.,Voloshin, Yan Z.
, p. 9677 - 9689 (2014/06/23)
Nucleophilic substitution of an iron(ii) dichloroclathrochelate with diphenylphosphine sulfide under PTC afforded a monophosphorylated cage complex. This precursor undergoes further nucleophilic substitution with mono- and diamines giving P,N-substituted mono- and bis-clathrochelates; those with thiophosphoryl and pyridyl groups were used as N,S-donor macrobicyclic ligands toward the palladium(ii) ion. In the resulting Pd,Fe-binuclear 1:1 complexes, the clathrochelate moieties retain the geometry, characteristic of low-spin iron(ii) complexes, with a minor distortion caused by intramolecular interactions. The Pd2+ ion has a twisted square-planar N 2SCl-environment. The complexes thus obtained proved to be efficient catalysts of the Suzuki cross-coupling reaction.
