Simon J. Dunne

Stille cross-coupling of metal complexes

Abstract Dicationic ruthenium(II) complexes may be used in Stille couplings to give complexes of ditopic ligands in which the site of metallation is unambiguous.

Reversible cyclometallation at a ruthenium(II) centre

The metallated complex [Ru(tbp)(tpy)][PF6][Htbp = 6-(2-thienyl)-2,2′-bipyridine, tpy = 2,2′:6′,2″-terpyridine] is converted to the non-metallated species [Ru(Htbp)(tpy)][PF6] containing an N,N,S-bonded Htbp ligand upon treatment with acid; this process is reversed upon reaction of [Ru(Htbp)(tpy)][PF6] with aqueous sodium hydroxide solution.

Synthesis of the Fused Heterobicycles 5-pyridin-2-yl-thieno[3,2-b]pyridine, 6-pyridin-2-yl-thieno[2,3-b]pyridine and 6-pyridin-2-yl-thieno[3,2-c]pyridine

Three new pyridyl thienopyridines, 5-pyridin-2-ylthieno[3,2-b]pyridine, 6-pyridin-2-yl-thieno[2,3-b]pyridine and 6-pyridin-2-yl-thieno[3,2-c]pyridine, have been synthesized, each through a differen ...