Cobalt Complexes Supported by Phosphinoquinoline Ligands for the Catalyzed Hydrosilylation of Carbonyl Compounds
作者:Pauline Schiltz、Nicolas Casaretto、Audrey Auffrant、Corinne Gosmini
DOI:10.1002/chem.202200437
日期:2022.6.7
substituent (i Pr, Ph) were employed to synthesize a series of cobalt(II) complexes ([LCoBr2 ], [L2 CoBr](PF6 ) and [L'2 CoBr](PF6 )). The latter were obtained in high yield and characterized among others by X-ray analysis and elemental analysis. Complex [L2 CoBr](PF6 ) showed a very good catalytic activity for the hydrosilylation of various ketones. The catalysis proceeds at a low catalytic loading (1 mol %)
P,N 膦喹啉基配体因磷取代基 (i Pr, Ph) 的性质而异,用于合成一系列钴 (II) 配合物 ([LCoBr2 ]、[L2 CoBr](PF6 ) 和 [L'2 CoBr ](PF6))。后者以高产率获得,并通过 X 射线分析和元素分析进行了表征。配合物[L2 CoBr](PF6 )对各种酮的氢化硅烷化表现出非常好的催化活性。催化在低催化负载 (1 mol%) 下进行,在温和条件下仅使用 1 当量的 Ph2 SiH2,并且对于脂肪族或芳香族酮是有效的,从而产生中等至极好的相应甲硅烷基化醚的产率。