CChemRxiv4/24/2026Phosphonium Ions as Activating Groups for the Selective Alkylation of Pyridines and PolyazinesDavid A. Brunner·Andrew McNally·David C. Thomas·Kaila R. Steenback·Soren D. RozemaRead at ChemRxivTagsCoordination Chemistry and OrganometallicsOrganic Chemistry