500229-85-6Relevant academic research and scientific papers
A tetranuclear CuII2DyIII2 coordination cluster as a Suzuki (C-C) coupling reaction promoter
Kumar, Prashant,Griffiths, Kieran,Anson, Christopher E.,Powell, Annie K.,Kostakis, George E.
supporting information, p. 17202 - 17205 (2019/01/03)
The air-stable tetranuclear coordination cluster [CuII2DyIII2L4(NO3)2(CH3CN)2]·2(CH3CN), which can be obtained in high yield, promotes the Suzuki coupling reaction of phenylboronic acid with substituted aryl halides under environmentally benign conditions.
Method used for synthesizing heterocycle substituted multi-fluoro arene through defluorination and hydrogenation and controlled by phosphine ligand
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Paragraph 0051; 0052, (2016/12/16)
The invention discloses a method for synthesizing heterocycle substituted multi-fluoro arene through defluorination and hydrogenation and controlled by a phosphine ligand, and belongs to the technical field of chemical engineering. Cheap heterocycle subst
Asymmetric Hydrogenation of Pyridinium Salts with an Iridium Phosphole Catalyst
Chang, Mingxin,Huang, Yuhua,Liu, Shaodong,Chen, Yonggang,Krska, Shane W.,Davies, Ian W.,Zhang, Xumu
supporting information, p. 12761 - 12764 (2016/02/18)
Iridium-catalyzed asymmetric hydrogenation of N-alkyl-2-alkylpyridinium salts provided 2-aryl-substituted piperidines with high levels of enantioselectivity. Simple benzyl and other alkyl groups successfully activated the challenging pyridine substrates toward hydrogenation. The use of the unusual chiral-phosphole-based MP2-SEGPHOS was the key to the success of this approach which provides a versatile and practical procedure for the synthesis of chiral piperidines. Ring to ring: Simple N-benzyl and N-alkyl groups successfully activated pyridine substrates toward hydrogenation. The use of the unusual chiral phosphole-based ligand L was the key to the success of this approach, which provides a versatile and practical procedure for the synthesis of chiral piperidines. cod=1,5-cyclooctadiene.
Dynamic functionalised metallogel: An approach to immobilised catalysis with improved activity
Huang, Jing,He, Lisi,Zhang, Jianyong,Chen, Liuping,Su, Cheng-Yong
experimental part, p. 97 - 103 (2010/04/28)
A metal-organic gel (MOG) route to immobilised catalysts has been developed based on the reversibility of coordination bond formation in a Fe3+-carboxylate MOG. The ferric gel was rationally designed based on a bifunctional ligand, 5-1H-benzo[d]imidazole-1,3-dicarboxylic acid (L1), in which the imidazole N atom may further bind to a soft ion like Pd2+ more strongly due to the HSAB matching. Palladium(II) was successfully loaded in the gel to yield a supported coordination catalyst. Compared with its homogeneous counterparts, the immobilised gel catalyst exhibited significantly improved catalytic activity under mild conditions as shown in Suzuki-Miyaura C-C coupling, and could be reused for several times.
Metal-organic gels as functionalisable supports for catalysis
Zhang, Jianyong,Wang, Xiaobing,He, Lisi,Chen, Liuping,Su, Cheng-Yong,James, Stuart L.
experimental part, p. 1070 - 1075 (2010/08/22)
Modification of Fe-tricarboxylate based metal-organic gels yielded tert-butyl substituted or phosphine-functionalised gels in alcohols or DMF, which were prepared from 5-tert-butylisophthalic acid and 5- diphenylphosphanylisophthalic acid, respectively. Owing to their permeability, such phosphine-functionalised metal-organic gels can act as a new type of functionalisable porous scaffold. The phosphorus-containing gel was subsequently functionalised with Pd(ii) by immersion in a solution of Pd(COD)Cl2 (COD = 1,5-cyclooctadiene). The subsequently functionalised Pd(ii)-immobilised gel and its xerogel/aerogel showed high activity in the catalysis of Suzuki C-C coupling comparable to unsupported complexes. The gel/xerogels could be reused under ambient atmosphere.
