1421946-25-9Relevant articles and documents
Synthesis and characterization of a redox-active bis(thiophenolato)amide ligand, [SNS]3-, and the homoleptic tungsten complexes, W[SNS] 2 and W[ONO]2
Shaffer, David W.,Szigethy, Geza,Ziller, Joseph W.,Heyduk, Alan F.
, p. 2110 - 2118 (2013)
A new tridentate redox-active ligand platform, derived from bis(2-mercapto-p-tolyl)amine, [SNScat]H3, has been prepared in high yields by a four-step procedure starting from commericially available bis(p-tolyl)amine. The redox-active pincer-type ligand has been coordinated to tungsten to afford the six-coordinate, homoleptic complex W[SNS]2. To benchmark the redox behavior of the [SNS] ligand, the analogous tungsten complex of the well-known redox-active bis(3,5-di-tert- butylphenolato)amide ligand, W[ONO]2, also has been prepared. Both complexes show two reversible reductions and two partially reversible oxidations. Structural, spectroscopic, and electrochemical data all indicate that W[ONO]2 is best described as a tungsten(VI) metal center coordinated to two [ONOcat]3- ligands. In contrast, experimental data suggests a higher degree of S→W π donation, giving the W[SNS]2 complex non-innocent electronic character that can be described as a tungsten(IV) metal center coordinated to two [SNS sq]2- ligands.
A simple and convenient method for the synthesis of N, N-diaryl tertiary amines
Wekesa, Francis S.,Phadke, Neha,Jahier, Claire,Cordes, David B.,Findlater, Michael
, p. 1046 - 1051 (2014/05/06)
Direct preparation of tertiary amines in which two substituents are aromatic is described. In the presence of either the inorganic base sodium tert-butoxide or the sterically hindered organic base diisopropylethylamine, the alkylation of secondary diarylamines is achieved smoothly. In contrast to methods previously reported in the literature, this procedure is high-yielding and does not require the use of transition-metal catalysts or functional-group-intolerant hydride reductants. Georg Thieme Verlag Stuttgart ? New York.
