Sterically Demanding, Zwitterionic Trialkylphosphonium Sulfonates as Air-Stable Ligand Precursors for Efficient Palladium-Catalyzed Cross-Couplings of Aryl Bromides and Chlorides
William S. Brown, D’Ariel D. Boykin, M. Quentin Sonnier, William D. Clark, Fallon V. Brown, Kevin H. Shaughnessy* Department of Chemistry, The University of Alabama, Tuscaloosa, AL 35487-0336, USA Fax: +1(205)3489104; e-Mail: kshaughn@bama.ua.edu;