Zinc–zinc bonded decamethyldizincocene Zn2(η5-C5Me5)2 as catalyst for the inter- and intramolecular hydroamination reaction
作者:Anja Lühl、Hari Pada Nayek、Siegfried Blechert、Peter W. Roesky
DOI:10.1039/c1cc12461g
日期:——
The ZnâZn bonded compound [(η5-Cp*)2Zn2] was investigated as catalyst for the inter- and intramolecular hydroamination reaction. High reaction rates under mild conditions were observed. This is the first application of a ZnâZn bonded compound as catalyst.
Comparison of Decamethyldizincocene [(η<sup>5</sup>-Cp*)<sub>2</sub>Zn<sub>2</sub>] versus Decamethylzincocene [Cp*<sub>2</sub>Zn] and Diethylzinc Et<sub>2</sub>Zn As Precatalysts for the Intermolecular Hydroamination Reaction
作者:Anja Lühl、Larissa Hartenstein、Siegfried Blechert、Peter W. Roesky
DOI:10.1021/om300649q
日期:2012.10.22
organometallic zinc compound [Cp*2Zn] and ZnEt2 for the intermolecular hydroamination reaction in the presence of equimolar amounts of [PhNMe2H][B(C6F5)4] is reported. All compounds show high reaction rates under mild conditions and a good functional group tolerance for the addition of aniline derivatives to primary alkynes. Within this series the metallocene [Cp*2Zn] is the most active one, whereas
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。