Repercussion of a 1,3-Hydrogen Shift in a Hydride-Osmium-Allenylidene Complex [0.03%]
氢桥移对杂环化合物性能的影响研究
Miguel A Esteruelas,Enrique Oñate,Sonia Paz et al.
Miguel A Esteruelas et al.
An unusual 1,3-hydrogen shift from the metal center to the Cβ atom of the C3-chain of the allenylidene ligand in a hydride-osmium(II)-allenylidene complex is the beginning of several interesting transformations in the cumulene. The hydride...
Preparation and Degradation of Rhodium and Iridium Diolefin Catalysts for the Acceptorless and Base-Free Dehydrogenation of Secondary Alcohols [0.03%]
用于二级醇无接受体和无碱脱氢的Rh和Ir双烯催化剂的制备及其降解
María L Buil,Alba Collado,Miguel A Esteruelas et al.
María L Buil et al.
Rhodium and iridium diolefin catalysts for the acceptorless and base-free dehydrogenation of secondary alcohols have been prepared, and their degradation has been investigated, during the study of the reactivity of the dimers [M(μ-Cl)(η4-...
Mechanistic Studies on the Synthesis of Pyrrolidines and Piperidines via Copper-Catalyzed Intramolecular C-H Amination [0.03%]
铜催化 intramolecular c-h 酰胺化合成吡咯烷和哌啶的机理研究
José María Muñoz-Molina,Daniel Bafaluy,Ignacio Funes-Ardoiz et al.
José María Muñoz-Molina et al.
We have recently developed a method for the synthesis of pyrrolidines and piperidines via intramolecular C-H amination of N-fluoride amides using [Tp x CuL] complexes as precatalysts [Tp x = tris(pyrazolyl)borate ligand and L = THF or CH3CN...
Patrick J Morgan,Graham C Saunders,Stuart A Macgregor et al.
Patrick J Morgan et al.
Quantitative catalytic nucleophilic fluorination of a range of acyl chlorides to acyl fluorides was promoted by a cyclometallated rhodium complex [(η5,κ2C-C5Me4CH2C6F5CH2NC3H2NMe)- RhCl] (1). 1 can be prepared in high yields from commerci...
Selectivity, Speciation, and Substrate Control in the Gold-Catalyzed Coupling of Indoles and Alkynes [0.03%]
金催化吲哚和炔烃偶联反应的选择性、物种及底物控制研究
Ryan G Epton,William P Unsworth,Jason M Lynam
Ryan G Epton
A convenient and mild protocol for the gold-catalyzed intermolecular coupling of substituted indoles with carbonyl-functionalized alkynes to give vinyl indoles is reported. This reaction affords 3-substituted indoles in high yield, and in c...
Robust Olefin Metathesis Catalyst Bearing a Tridentate Hemilabile NHC Ligand [0.03%]
一类三齿半配位NHC金属配合物催化剂及其茂金属开环易位聚合中的应用研究
Joseph S Yoon,Nicolas Cena,Yann Schrodi
Joseph S Yoon
An olefin metathesis catalyst bearing a tridentate hemilabile N-heterocyclic carbene (NHC) ligand was synthesized and characterized. The solid-state crystal structure reveals coordination from all three donation sites of the NHC ligand, giv...
Olefin Metathesis Catalyst Supported by a Hemilabile NHC Ligand Bearing Polyether Arms: Structure, Activity, and Decomposition [0.03%]
由带有聚醚臂的半牢固NHC配体支撑的烯烃复分解催化体系：结构，活性和降解产物分析
Jordan D Carter,Yann Schrodi
Jordan D Carter
An olefin metathesis catalyst (8) bearing a hemilabile N-heterocyclic carbene (NHC) ligand with four methoxyethoxy arms was synthesized and analyzed by X-ray crystallography and NMR spectroscopy. The solid-state structure of the catalyst re...
C-Cl Oxidative Addition and C-C Reductive Elimination Reactions in the Context of the Rhodium-Promoted Direct Arylation [0.03%]
Rh催化直接芳基化反应中的C-Cl氧化加成和C-C还原消除反应
Laura A de Las Heras,Miguel A Esteruelas,Montserrat Oliván et al.
Laura A de Las Heras et al.
A cycle of stoichiometric elemental reactions defining the direct arylation promoted by a redox-pair Rh(I)-Rh(III) is reported. Starting from the rhodium(I)-aryl complex RhPh{κ3-P,O,P-[xant(PiPr2)2]} (xant(PiPr2)2 = 9,9-dimethyl-4,5-bis(di...
Bulking up CpBIG: A Penta-Terphenyl Cyclopentadienyl Ligand [0.03%]
通过引入五联菲基团增大环戊二烯配体的体积：一个五联菲环戊二烯基配合物的例子
Gabriele Hierlmeier,Robert Wolf
Gabriele Hierlmeier
The modification of cyclopentadienyl ligands with carefully selected substituents is a widely used strategy for tuning their steric and electronic properties. We describe the synthesis of an extremely bulky penta-terphenyl cyclopentadienyl ...
Tethering Carbohydrates to the Vinyliminium Ligand of Antiproliferative Organometallic Diiron Complexes [0.03%]
通过乙烯基阴离子配体连接碳水化合物以构建具有抗增殖活性的二铁金属有机配合物
Silvia Schoch,Dalila Iacopini,Maria Dalla Pozza et al.
Silvia Schoch et al.
Four propargyl O-glycosides derivatized with mannose, glucose, and fructose moieties were synthesized and then incorporated within a diiron structure as part of a vinyliminium ligand. Hence, six glycoconjugated diiron complexes, [2-5]CF3SO3...