Rhodium Complexes Bearing 1,10-Phenanthroline Analogue Bis-NHC Ligands Are Active Catalysts for Transfer Hydrogenation of Ketones

被引：35

作者：

Gierz, Verena ^{[1
]}

Urbanaite, Aurelija ^{[1
]}

Seyboldt, Alexander ^{[1
]}

Kunz, Doris ^{[1
]}

机构：

[1] Univ Tubingen, Inst Anorgan Chem, D-72076 Tubingen, Germany

来源：

ORGANOMETALLICS | 2012年 / 31卷 / 21期

关键词：

N-HETEROCYCLIC CARBENE; EFFICIENT TRANSFER HYDROGENATION; OXIDATIVE ADDITION; IRIDIUM COMPLEXES; C-H; COORDINATION; REACTIVITY; DONOR; ACTIVATION; SILVER;

D O I：

10.1021/om3008103

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Synthesis of a new example of the pyridazine annelated bis(N-heterocyclic carbene) ligand 3b (vegi) bearing benzyl substituents. is reported, as well as the synthesis of its Cationic Rh(cod) complex 5b. The mechanism of formation of the [Rh(cod)(vegi)](+) complexes was investigated, showing stepwise deprotonation of the imidazolium moieties via the mono-carbene imidazolium Rh(cod)Cl species 4. The [Rh(cod)(vegi)](+) 4 complexes 5a,b show catalytic activity in the transfer hydrogenation of even sterically hindered ketones.

引用

页码：7532 / 7538

页数：7

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