SATURATED N-HETEROCYCLIC CARBENE-LIGAND METAL COMPLEX DERIVATIVES, PREPARING METHOD THEREOF, AND PREPARING METHOD OF SILANE COMPOUND BY HYDROSILYLATION REACTION USING THE SAME AS CATALYST
N-heterocyclic carbenes of iridium(I): ligand effects on the catalytic activity in transfer hydrogenation
作者:Sandra C. Zinner、Christoph F. Rentzsch、Eberhardt Herdtweck、Wolfgang A. Herrmann、Fritz. E. Kühn
DOI:10.1039/b906855d
日期:——
New Ir-NHC complexes based on different heterocyclic moieties like imidazole, benzimidazole and imidazolidine are presented and tested in transfer hydrogenation catalysis. A broad range of steric and electronic properties of NHC ligands is covered to give an idea for catalyst design from the experimental point of view.
[EN] SATURATED N-HETEROCYCLIC CARBENE-LIGAND METAL COMPLEX DERIVATIVES, PREPARING METHOD THEREOF, AND PREPARING METHOD OF SILANE COMPOUND BY HYDROSILYLATION REACTION USING THE SAME AS CATALYST<br/>[FR] DÉRIVÉS DE COMPLEXE MÉTALLIQUE AVEC LIGAND-CARBÈNE N-HÉTÉROCYCLIQUE SATURÉ, LEUR PROCÉDÉ DE PRÉPARATION ET PROCÉDÉ DE PRÉPARATION DE COMPOSÉ SILANE PAR RÉACTION D'HYDROSILYLATION À L'AIDE DE CEUX-CI COMME CATALYSEUR
申请人:KOREA INST SCI & TECH
公开号:WO2011081277A3
公开(公告)日:2011-09-29
SATURATED N-HETEROCYCLIC CARBENE-LIGAND METAL COMPLEX DERIVATIVES, PREPARING METHOD THEREOF, AND PREPARING METHOD OF SILANE COMPOUND BY HYDROSILYLATION REACTION USING THE SAME AS CATALYST
申请人:Yoo Bok Ryul
公开号:US20110160454A1
公开(公告)日:2011-06-30
Provided are a saturated N-heterocyclic carbene-ligand metal complex derivative, a method for preparing the same, and a method for preparing a silane compound by hydrosilylation using the same as a catalyst. To describe in more detail, the metal complex derivative has a saturated N-heterocyclic carbene derivative and an olefin ligand at the same time. A silane compound is prepared by hydrosilylation in the presence of the metal complex derivative as a catalyst. The provided metal complex derivative of the present invention has superior stability during hydrosilylation reaction and is capable of effectively performing the hydrosilylation reaction at low temperature even with small quantity. Further, a product with superior regioselectivity may be obtained. In addition, after the hydrosilylation reaction is completed, the metal complex derivative may be recovered and recycled.
Synthesis of New Cationic Cp*Ir N-Heterocyclic Carbene Complexes and Their High Catalytic Activities in the Oppenauer-Type Oxidation of Primary and Secondary Alcohols
Several new cationic Cp*Ir N-heterocyclic complexes have been synthesized and their catalytic activities in the Oppenauer-type oxidation have been investigated in order to improve the catalytic activity of [Cp*IrCl(μ-Cl)]2. The reactions of [Cp*IrCl(μ-Cl)]2 (1) with N-heterocycliccarbene ligands afforded Cp*Ir(L)Cl2 (3a−d; L = N-heterocycliccarbene ligands). The cationic complexes [Cp*Ir(L)(MeCN)2]2+