Ruthenium-catalyzed benzylic substitution of benzyl esters with stabilized carbon nucleophiles
作者:Koki Suzuki、Hiroaki Tsuji、Motoi Kawatsura
DOI:10.1039/c9cc09899b
日期:——
accomplished the ruthenium-catalyzed benzylic substitution of benzyl esters with a stabilized carbon nucleophile. A [Cp*RuCl2]2/picolinic acid catalyst system promoted the reaction of 2-naphthylmethyl-2,3,4,5,6-pentafluorobenzoates with a series of stabilized carbon nucleophiles such as malonates, β-ketoesters, and diketones to give the corresponding benzylic alkylation products in moderate to high yields.
我们已经用稳定的碳亲核试剂完成了钌催化的苄基酯的苄基取代。[Cp * RuCl2] 2 /吡啶甲酸催化剂体系促进了2-萘甲基-2,3,4,5,6-五氟苯甲酸酯与一系列稳定的碳亲核试剂如丙二酸酯,β-酮酸酯和二酮的反应,从而得到中等至高收率的相应苄基烷基化产物。我们提出了一种可能的反应机理,该机理可能涉及(π-苄基)钌中间体。