[(NHC)CoR<sub>2</sub>]: pre-catalysts for homogeneous olefin and alkyne hydrogenation
作者:Andreea Enachi、Dirk Baabe、Marc-Kevin Zaretzke、Peter Schweyen、Matthias Freytag、Jan Raeder、Marc D. Walter
DOI:10.1039/c8cc08891h
日期:——
form 3- and 4-coordinate compounds, respectively. [(ItBu)Co(CH2SiMe3)2] (ItBu = 1,3-di-tert-butylimidazolin-2-ylidene) serves as an efficient, homogeneous olefin hydrogenation pre-catalyst and allows the preparation of the novel cobalt bis(alkyne) complex [(ItBu)Co(η2-PhCCPh)2].
提出了一种新颖的二烷基钴化合物[(tmeda)CoR 2 ]的合成方法。在这些复合物中,tmeda容易被NHC或双齿膦配体取代,分别形成3和4配位化合物。[(I t Bu)Co(CH 2 SiMe 3)2 ](I t Bu = 1,3-二叔丁基咪唑啉-2-亚烷基)可作为一种有效的均相烯烃加氢预催化剂,可用于制备新颖的钴双(炔)配合物[(I吨丁基)的Co(η 2 -PhCCPh)2 ]。