Noncatalytic Pyridyl-Directed Alkylation and Arylation Carbon–Fluorine Bond of Polyfluoroarenes with Grignard Reagents
摘要:
Cross-coupling reaction of polyfluoroarenes with Grignard reagents via pyridine-directed cleavage of C-F bond in the absence of metal catalysts was developed. A possible mechanism was suggested.
Ligand-induced reactivity of β-diketiminate magnesium complexes for regioselective functionalization of fluoroarenes via C–H or C–F bond activations
作者:Laia Davin、Ross McLellan、Alan R. Kennedy、Eva Hevia
DOI:10.1039/c7cc07193k
日期:——
Using β-diketiminate Mg(II) complexes containing either alkyl, aryl or amide groups, the regioselectivefunctionalization of a wide range of fluoroarenes is accomplished but in uniquely different ways. Overcoming common limitations of traditional s-block bases, kinetically activated [(DippNacnac)Mg(TMP)] (1) deprotonates these molecules at room temperature, trapping sensitive fluoroaryl anions that