Synthesis of NHC Pincer Hydrido Nickel Complexes and Their Catalytic Applications in Hydrodehalogenation

被引：21
|
作者：
Wang, Zijing [1 ]
Li, Xiaoyan [1 ]
Sun, Hongjian [1 ]
Fuhr, Olaf [2 ,3 ]
Fenske, Dieter [2 ,3 ]
机构：
[1] Shandong Univ, Sch Chem & Chem Engn, Key Lab Special Funct Aggregated Mat, Minist Educ, Shanda Nanlu 27, Jinan 250199, Shandong, Peoples R China
[2] KIT, Inst Nanotechnol INT, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany
[3] KIT, KNMF, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany
来源：
ORGANOMETALLICS | 2018年 / 37卷 / 04期
关键词：
CARBON-DIOXIDE; LIGANDS; BONDS; ALKYL; IRON; HYDROGENATION; ELIMINATION; ACTIVATION; REACTIVITY; REDUCTION;
D O I：
10.1021/acs.organomet.7b00848
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The C(carbene)N(amino)N(amine)-pincer nickel(II) bromides la-c were hydrogenated to the corresponding nickel(II) hydrides 2a-c by (EtO)(3)SiH/(NaOBu)-Bu-t or NaBH4. These nickel(11) hydrides 2a-c were characterized by NMR and IR spectroscopy as well as X-ray diffraction. The catalytic performance of complex 2b for hydrodehalogenation reactions was explored. With a combination of 3 mol % catalyst loading, (EtO)(3)SiH/(NaOBu)-Bu-t/toluene/80 degrees C and different reaction times, organic halides were successfully reduced to the related alkanes. A catalytic radical mechanism is proposed and partially verified by experiments.
引用
收藏
页码：539 / 544
页数：6
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