当前位置: X-MOL 学术Organometallics › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Synthesis and Reactivity of Methylpalladium Complexes Bearing a Partially Saturated IzQO Ligand
Organometallics ( IF 2.5 ) Pub Date : 2018-07-10 , DOI: 10.1021/acs.organomet.8b00263
Shumpei Akita 1 , Ryo Nakano 1 , Shingo Ito 1 , Kyoko Nozaki 1
Affiliation  

A saturated N-heterocyclic carbene–phenolate bidentate ligand, 3,3a,4,5-tetrahydroimidazo[1,5-a]quinolin-9-olate-1-ylidene (SIzQO), was synthesized and characterized. The SIzQO ligand was then treated with PdClMe(pyridine)2 and [Pd(μ-Cl)Me(2,6-lutidine)]2, which afforded C,C-cis-(SIzQO)PdMe(pyridine) and the thermodynamically unstable trans isomer C,C-trans-(SIzQO)PdMe(2,6-lutidine), respectively. The latter isomerizes at 40 °C into the corresponding cis isomer via a dissociative mechanism. These palladium/SIzQO complexes catalyze the polymerization of ethylene at 100–120 °C, although the catalytic activity is lower than that of a previously reported palladium/imidazo[1,5-a]quinolin-9-olate-1-ylidene (IzQO) system.

中文翻译:

带有部分饱和IzQO配体的甲基钯配合物的合成和反应性

合成并表征了饱和的N-杂环卡宾-酚盐双齿配体3,3a,4,5-四氢咪唑并[1,5 - a ]喹啉-9-油酸酯-1-亚烷基(SIzQO)。所述配体SIzQO然后用PdClMe(吡啶)处理2和[钯(μ-Cl)的我(2,6-二甲基吡啶)] 2,得到ÇÇ -顺式- (SIzQO)PDME(吡啶)和热力学不稳定反式异构体çç -反式- (SIzQO)PDME(2,6-二甲基吡啶),分别。后者在40°C异构化为相应的顺式异构体通过解离机制。这些钯/ SIzQO配合物可在100-120°C的温度下催化乙烯的聚合,尽管催化活性低于先前报道的钯/咪唑并[1,5- a ]喹啉-9-油酸酯-1-亚烷基(IzQO ) 系统。
更新日期:2018-07-12
down
wechat
bug