| Rare-earth metal amido complexes supported by bridged bis(β-diketiminato) ligand as efficient catalysts for hydrophosphonylation of aldehydes and ketones |
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| 作者姓名： | MIAO Hui ZHOU ShuangLiu WANG ShaoWu ZHANG LiJun WEI Yun YANG Song WANG FenHua CHEN Zheng CHEN Yue YUAN QingBing |
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| 作者单位： | Laboratory of Functionalized Molecular Solids,Ministry of Education;Anhui Laboratory of Molecule-Based Materials,School of Chemistry and Materials Science,Anhui Normal University;State Key Laboratory of Organometallic Chemistry,Shanghai Institute of Organic Chemistry,Chinese Academy of Sciences |
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| 基金项目： | co-supported by the National Natural Science Foundationof China (20832001,21072004,21172004,21172003);the National Basic Research Program of China (2012CB821604) |
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| 摘 要： | A series of rare-earth metal amides supported by a cyclohexyl-linked bis(β-diketiminato) ligand were synthesized,and their catalytic activities for hydrophosphonylation of aldehydes and ketones were developed.Reaction of (Me3Si)2N]3 RE(Cl)Li(THF)3 with the cyclohexyl-linked bis(-diketimine) H2L(1)(L=CyNC(Me)CHC(Me)NAr]2,Cy = cyclohexyl,Ar=2,6-i-Pr2C6H3) gave the rare-earth metal amides LREN(SiMe3)2(RE = Nd(2),Sm(3),Dy(4),Er(5),Y(6)).All complexes were fully characterized by elemental,spectroscopic and single-crystal X-ray analyses.Investigation of the catalytic properties of the complexes reveals that these complexes exhibited a high catalytic activity towards the hydrophosphonylation of aldehydes and ketones in the presence of a very low loading of rare-earth metal amides(0.1-1 mol%) at room temperature in a short time.
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| 关 键 词： | Rare-earth metal hydrophosphonylation aldehyde ketone |
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