10.1021/acs.orglett.8b02668.s001 Jialin Ming Jialin Ming Tamio Hayashi Tamio Hayashi Rhodium-Catalyzed Arylzincation of Alkynes: Ligand Control of 1,4‑Migration Selectivity American Chemical Society 2018 rhodium complexes arylzinc reagents ArZnCl 1 zinc chloride migration ligand presence Rhodium-Catalyzed Arylzincation binap Alkyne 2- arylalkenylzinc species 3 Ligands cod selectivity Ligand Control Selectivity ortho Migration alkynes 2 alkenylarylzinc species 4 latter 2018-09-20 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Rhodium-Catalyzed_Arylzincation_of_Alkynes_Ligand_Control_of_1_4_Migration_Selectivity/7111202 The addition of arylzinc reagents ArZnCl <b>1</b> to alkynes <b>2</b> was found to be catalyzed by rhodium complexes in the presence of a catalytic amount of zinc chloride. The selectivity in giving 2-arylalkenylzinc species <b>3</b> or <i>ortho</i>-alkenylarylzinc species <b>4</b>, the latter of which is generated through 1,4-Rh migration from alkenyl to aryl in the catalytic cycle, is controlled by the ligands on rhodium. Ligands cod and binap gave <b>3</b> and <b>4</b>, respectively, with high selectivity.