(Ferrocenylthienyl)phosphines for the Suzuki-Miyaura C,C coupling

2-(3-Ferrocenylthienyl)phosphines were synthesized and their application as ligands in the Pd-catalyzed Suzuki-Miyaura C,C cross-coupling of aryl halides with boronic acids to give the respective biaryls is reported. Electron-rich, electron-poor as well as sterically hindered substrates could be coupled with high yields at Pd-loadings as low as 0.1 mol%.