Mixed heteropentadienyl and N-heterocyclic carbene ruthenium(II) complexes: Synthesis and transfer hydrogenation catalysis

被引：6

作者：

Olguin, Juan ^{[1
]}

Diaz-Fernandez, Monica ^{[1
]}

Ignacio de la Cruz-Cruz, Jose ^{[1
]}

Angeles Paz-Sandoval, M. ^{[1
]}

机构：

[1] IPN, Ctr Invest & Estudios Avanzados, Dept Quim, Ave IPN 2508, Mexico City 07360, DF, Mexico

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2016年 / 824卷

关键词：

Heteropentadienyl complexes; N-heterocyclic carbene complexes; Ruthenium complexes; Transfer hydrogenation catalysis; TRANSITION-METAL-COMPLEXES; ASYMMETRIC TRANSFER HYDROGENATION; BUTADIENESULFINATE SALTS; PHOSPHINE CHEMISTRY; LIGANDS SYNTHESIS; REACTIVITY; OXOPENTADIENYL; IMIDAZOLIUM; METATHESIS; KETONES;

D O I：

10.1016/j.jorganchem.2016.09.031

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two synthetic methodologies for obtaining novel mixed heteropentadienyl and N-heterocyclic carbenes (NHC) ruthenium(II) complexes have been explored. A synthetic strategy involving the addition of heteropentadienyl precursors to [Ru-II]-NHC complexes proved to be a successful route for the isolation of four novel mixed ligand complexes, namely stereoisomers [(p-cymene)Ru-II(BuImMe)(eta(3)-exo-syn-CH2CHCHCHO)]BF4 (3 and 3', BulmMe = 1-butyl-3-methylimidazolyl-2-idene) and [(eta(1)-CH(2)CHCRCHS02) Ru-II(PylmMe)(CH3CN)(3)](A) (PylmMe = 3-methyl-1-(2-pyridyl)imidazolyl-2-idene, R = H, A = BF4, 6; R = CH3, A = PF6, 7). Moreover complex 6 has been characterised by X-ray crystallography confirming the sulphur-bound monodentate nature of CH2CHCHCHSO2 ligand adopting an S-conformation. Complexes 6 and 7 were tested as pre-catalysts in the transfer hydrogenation reaction of benzophenone, showing moderate and good activities, respectively. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：33 / 41

页数：9

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