Influence of the Transmetalating Agent in Difficult Coupling Reactions: Control in the Selectivity of C–F Bond Activation by Ni(0) Complexes in the Presence of AlMe<sub>3</sub>
作者:Drake A. Baird、S. Jamal、Samuel A. Johnson
DOI:10.1021/acs.organomet.7b00165
日期:2017.4.10
Although Ni(PEt3)(4) does not react with di- or trifluoroarenes at room temperature, upon the addition of aluminum hydrocarbons such as AlMe3 an immediate reaction occurs, to give AlMe2F and Ni(II) complexes from C-F bond activation and transmetalation. The influence of additional Lewis basic compounds, such as pyridine, on selectivity in these systems provides insight into how selectivity in a cross-coupling reaction is controlled by the transmetalating agent and how the oxidative addition and transmetalation steps are not necessarily distinct.