共 50 条
Rich C-H bond activations of yttrium alkyl complexes bearing phosphinimino-amine ligands
被引:14
|作者:
Li, Danfeng
[1
,2
]
Li, Shihui
[1
,2
]
Cui, Dongmei
[1
]
Zhang, Xuequan
[1
]
机构:
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
基金:
中国国家自然科学基金;
关键词:
C-H bond activation;
Yttrium alkyl complex;
Phosphinimino-amine;
Polymerization;
BETA-DIKETIMINATO LIGANDS;
RARE-EARTH-METALS;
STRUCTURAL-CHARACTERIZATION;
CATALYTIC-ACTIVITY;
LANTHANIDE COMPLEXES;
CYCLOOCTATETRAENE COMPLEXES;
DIALKYLSCANDIUM COMPLEXES;
POLYMERIZATION CATALYSTS;
ORGANOYTTRIUM COMPLEXES;
HYDRIDE COMPLEXES;
D O I:
10.1016/j.jorganchem.2010.09.005
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
Aseries of phosphinimino-amine compounds (2,6-iPr(2)-C6H3NH)C(Me)CHPPh2(NAr)(Ar = 2,6-iPr(2)-C6H3 (HL1),2,6-Et-2-C6H3 (HL2),2,6-Me-2-C6H3 (HL3), C6H5 (HL4), 3-CF3-C6H4 (HL5)) that existed in imine and amine forms were synthesized and fully characterized. Treatment of HL1-5 with Y(CH2SiMe3)(3)(THF)(2) afforded the corresponding yttrium mono- or bis(alkyl) complexes that depended significantly on the ancillary ligands. The reactions between HL1-3 and Y(CH2SiMe3)(3)(THF)(2) at room temperature generated mononuclear monoalkyl complexes 1-3 via deprotonation and C-H bond activation. However, when compounds HL4,5 were used, the dialkyl complexes 4 and 5 were isolated by deprotonation only. The molecular structures of complexes 1-4 were characterized with X-ray crystallography and discussed. (c) 2010 Elsevier B.V. All rights reserved.
引用
下载
收藏
页码:2781 / 2788
页数:8
相关论文