Diphenyl(bis[2-pyridyl])phosphonium (Dipyphos) bromide has been synthesized via a simple aromatic substitution between the 2-bromopyridine and diphenyl(2-pyridyl)phosphine. This phosphine can be purchased commerically, but a more cost efficient syntesis has been devised. [Dipyphos]Br can be easily converted to other salts via an aqueous anion exchange. Attempts to install [Dipyphos]<sup>+</sup> onto a metal center have yielded mixed results. Progress towards a tridentate, phenyl(tris[2-pyridyl])phosphonium (Tripyphos), ligand will also be presented.

Synthesis of novel phosphonium ligands

251st National Meeting (2016)

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