Ruthenium Mediated C−H Activation of 2-(Arylazo)phenols: Characterization of an Intermediate and the Final Organoruthenium Complex
作者:Parna Gupta、Swati Dutta、Falguni Basuli、Shie-Ming Peng、Gene-Hsiang Lee、Samaresh Bhattacharya
DOI:10.1021/ic051874v
日期:2006.1.1
Reaction of 2-(arylazo)phenols with [Ru(PPh(3))(2)(CO)(2)Cl(2)] affords a family of organometallic complexes of ruthenium(II) of type [Ru(PPh(3))(2)(CO)(CNO-R)], where the 2-(arylazo)phenolate ligand (CNO-R; R = OCH(3), CH(3), H, Cl, and NO(2)) is coordinated to the metal center as tridentate C,N,O-donor. Another group of intermediate complexes of type [Ru(PPh(3))(2)(CO)(NO-R)(H)] has also been isolated
2-(芳基偶氮)苯酚与[Ru(PPh(3))(2)(CO)(2)Cl(2)]的反应提供了[Ru(PPh(3) ))(2)(CO)(CNO-R)],其中2-(芳基偶氮)酚酸酯配体(CNO-R; R = OCH(3),CH(3),H,Cl和NO(2) )作为三齿C,N,O供体与金属中心协调。还分离了另一组[Ru(PPh(3))(2)(CO)(NO-R)(H)]类型的中间配合物,其中2-(芳基偶氮)酚盐配体(NO-R)为与金属中心协调为二齿N,O供体。[Ru(PPh(3))(2)(CO)(NO-OCH(3))(H)]和[Ru(PPh(3))(2)(CO)(CNO-OCH(3) ))]复合物已通过X射线晶体学测定。所有的配合物都是抗磁性的,并在可见光区域显示出特征性的(1)H NMR信号和强烈的MLCT跃迁。