Ethyl-Zinc(II)-Cation Equivalents: Synthesis and Hydroamination Catalysis
作者:T. O. Petersen、E. Tausch、J. Schaefer、H. Scherer、P. W. Roesky、I. Krossing
DOI:10.1002/chem.201502328
日期:2015.9.21
Ion‐like ethylzinc(II) compounds with weakly coordinating aluminates [Al(ORF)4]− and [(RFO)3Al‐F‐Al(ORF)3]− (RF=C(CF3)3) were synthesized in a one‐pot reaction and fully characterized by single‐crystal X‐ray diffraction, NMR and vibrational spectroscopy, and by quantum chemical calculations. The catalytic activity of ion‐like Et‐Zn[Al(ORF)4] in intermolecular hydroamination and in the unusual double
具有弱配位铝酸盐[Al(OR F)4 ] -和[(R F O)3 Al-F-Al(OR F)3 ] -(R F = C(CF 3)3)是通过一锅法合成的,并通过单晶X射线衍射,NMR和振动光谱以及量子化学计算进行了全面表征。离子状Et-Zn [Al(OR F)4的催化活性进行了分子间加氢和苯胺和炔烃的非常规双加氢反应。与在2.5摩尔%的较低催化剂负载量下原位生成的Et 2 Zn / [PhNMe 2 H] + [B(C 6 F 5)4 ] -体系相比,也发现了良好的性能。
Unsaturated vicinal frustrated phosphane/borane Lewis pairs as ligands in gold(<scp>i</scp>) chemistry
作者:Atsushi Ueno、Kohei Watanabe、Constantin G. Daniliuc、Gerald Kehr、Gerhard Erker
DOI:10.1039/c9cc01136f
日期:——
The P/B FLP 6, formed by the 1,1-hydroboration of dimesitylphosphino(trimethylsilyl)acetylene with HB(C6F5)2 forms the Au(I)X complexes 9a (X: Cl) and 10a (X: NTf2), respectively. Both show marked Au⋯B interactions. The P/B FLP isomer 8, featuring the bulky SiMe3 substituent at the carbon adjacent to boron forms gold complexes 9b and 10b, both of which show weaker Au⋯B interactions. Complex 10a was
P / B FLP 6是由二异丁基膦基(三甲基甲硅烷基)乙炔与HB(C 6 F 5)2进行1,1-氢硼化而形成的Au(I)X络合物9a(X:Cl)和10a(X:NTf)2)。两者都显示出明显的Au⋯B相互作用。P / B FLP异构体8在与硼相邻的碳原子上具有庞大的SiMe 3取代基,形成金络合物9b和10b,两者均显示出较弱的Au⋯B相互作用。配合物10a被用于一系列炔烃与p的催化加氢胺化反应-甲苯胺。配合物9和10通过X射线衍射表征。