[Di(1-adamantyl)](aryl)phosphine ligands: synthesis, palladium complexation, and catalytic activity

Abstract

P(1-Ad)₂ (Ad = adamantyl) moiety-substituted quinoline, naphthyl, and isoquinoline ligands were synthesized to make Pd(II) complexes with κ²-P^N/P^C coordination. Pd-based catalytic activity towards Mizoroki–Heck coupling of those phosphine ligands was examined, showing that the ligand iQAdPhos (L3) with an isoquinoline core possessing κ²-P^C coordination was superior.