552333-50-3Relevant articles and documents
Cross-coupling of aryl halides and triflates with intramolecularly stabilized group 13-metal alkylating reagents in the presence of mixed-metal catalysts
Shenglof, Margarita,Gelman, Dmitri,Heymer, Bernd,Schumann, Herbert,Molander, Gary A.,Blum, Jochanan
, p. 302 - 306 (2003)
In the presence of tertiary phosphines, the palladium-containing mixed-metal complexes [(CO)4Fe(μ-PPh2)Pd(μ-Cl)]2(1) and [(CO)3Co]2(μ-CO)Pd[μ-(Ph2PCH 2)2] (2) catalyze the cross-coupling of aryl triflates and halides (including chlorides) with intramolecularly stabilized dialkylaluminum, -gallium and -indium reagents 3-8. The reactions are high yielding, and homocoupling and hydrodehalogenation processes are minimal even when the alkyl moieties of the alkylating reagents contain β-hydrogen atoms. As the components of the mixed-metal complexes are either poor catalysts, or completely inactive, the high catalytic activity of 1 and 2 is attributed to synergism between the different metal nuclei of the catalysts.