Rare-earth metal amido complexes supported by bridged bis（β-diketiminato） ligand as efficient catalysts for hydrophosphonylation of aldehydes and ketones  

出　　处：《Science China(Physics,Mechanics & Astronomy)》2013年第3期329-336,共8页中国科学：物理学、力学、天文学（英文版）

摘　　要：A series of rare-earth metal amides supported by a cyclohexyl-linked bis（β-diketiminato） ligand were synthesized, and theft catalytic activities for hydrophosphonylation of aldehydes and ketones were developed. Reaction of [（Me3Si）2N]3RE（ct- C1）Li（THF）3 with the cyclohexyl-linked bis（13-diketimine） H2L （1） （L = Cy[NC（Me）CHC（Me）NAr]2, Cy = cyclohexyl, Ar = 2, 6-i-Pr2C6H3） gave the rare-earth metal amides LREN（SiMe3）2 （RE = Nd（2）, Sin（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 tool%） at room temperature in a short time.

关 键 词：Rare-earth metal HYDROPHOSPHONYLATION ALDEHYDE KETONE 

分 类 号：O614.33[理学—无机化学] TS103.846[理学—化学]