The reaction of (Et3P)PdCl2 with 2,3-dihydroxypyridine, 5-chloro-2,3,-dihydroxypyridine, or 2-hydroxynicotinic acid in the presence of base gives neutral, metallomacrocyclic compounds in which the heterocycles act as dianionic, bridging ligands. The macrocycles contain four or ten palladium atoms as evidenced by single crystal X-ray analyses.
Berend Smit, Daniele Ongari, Christopher Patrick Ireland, Andres Adolfo Ortega Guerrero, Fatma Pelin Uran
Majed Chergui, Malte Oppermann, Jérémy Raymond Jean Maurice Rouxel