A Masked Cuprous Hydride as a Catalyst for Carbonyl Hydrosilylation in Aqueous Solutions

被引：22

作者：

Ritter, Florian ^{[1
]}

Mukherjee, Debabrata ^{[1
,2
]}

Spaniol, Thomas P. ^{[1
]}

Hoffmann, Alexander ^{[1
]}

Okuda, Jun ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Inorgan Chem, Landoltweg 1, D-52056 Aachen, Germany

[2] Indian Inst Technol Kharagpur, Dept Chem, Kharagpur 721302, W Bengal, India

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2019年 / 58卷 / 06期

关键词：

carbonyl reduction; catalysis in water; copper; hydridotriphenylborate; hydrosilylation; COPPER HYDRIDE; CRYSTALLOGRAPHIC CHARACTERIZATION; CONJUGATE REDUCTION; COMPLEXES; REACTIVITY; NA; TRANSFORMATIONS; REAGENT; LIGAND; WATER;

D O I：

10.1002/anie.201811890

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Redox-unstable cuprous hydridotriphenylborate was isolated as an N-heterocyclic carbene adduct [(IPr)Cu-(HBPh3)] (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) with good thermal stability. Although this compound displays a contact ion-pair structure, (CuH)-H-I-like catalytic activity was envisaged in carbonyl hydrosilylation. Sufficient moisture stability allowed the catalysis in aqueous/organic media. Mechanistic study further showed that a phenyl group on the borate anion is abstracted by [(IPr)Cu](+) to give the cationic organocopper complex [(IPr)(2)Cu-2(mu-Ph)][BPh4].

引用

页码：1818 / 1822

页数：5

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