Thermodynamic-Kinetic Comparison of Palladium(II)-Mediated Alcohol and Hydroquinone Oxidation [0.03%]
钯介导的醇和氢醌氧化的热力学-动力学对比
David L Bruns,Shannon S Stahl
David L Bruns
Palladium(II) catalysts promote oxidative dehydrogenation and dehydrogenative coupling of many organic molecules. Oxidations of alcohols to aldehydes or ketones are prominent examples. Hydroquinone (H2Q) oxidation to benzoquinone (BQ) is co...
Quantification of the Steric Properties of 1,8-Naphthyridine-Based Ligands in Dinuclear Complexes [0.03%]
基于1,8-萘啶配体的双核配合物中立体性质的量化研究
Lars Killian,Roel L M Bienenmann,Daniël L J Broere
Lars Killian
Steric properties of ligands are an important parameter for tuning the reactivity of the corresponding complexes. For various ligands used in mononuclear complexes, methods have been developed to quantify their steric bulk. In this work, we...
Improving the Configurational Stability of Chiral-at-Iron Catalysts Containing Two N-(2-Pyridyl)-Substituted N-Heterocyclic Carbene Ligands [0.03%]
含两个N-(2-吡啶基)取代的N-杂芳烃碳烯配体的手性铁催化剂构型稳定性的提升
Nemrud Demirel,Jakob Haber,Sergei I Ivlev et al.
Nemrud Demirel et al.
Recently, we introduced the first example of chiral-at-iron catalysts in which two achiral N-(2-pyridyl)-substituted N-heterocyclic carbene (NHC) ligands in addition to two labile acetonitriles are coordinated around a central iron, to gene...
Alexandra Longcake,Martin R Lees,Mark S Senn et al.
Alexandra Longcake et al.
Straightforward procedures for the generation of rhodium(I) κCl-chlorocarbon complexes of the form [Rh(PONOP-tBu)(κ Cl-ClR)][BArF 4] [R = CH2Cl, A; Ph, 1; Cy, 2; tBu, 3; PONOP-tBu = 2,6-bis(di-tert-butylphosphinito)pyridine; ArF = 3,5-bis...
Synthesis and Unusual Reactivity of Acyl-Substituted 1,4-Disilacyclohexa-2,5-dienes [0.03%]
酰基取代的1,4-二硅杂环己-2,5-二烯的合成及其反常反应性
Lukas Schuh,Ana Torvisco,Michaela Flock et al.
Lukas Schuh et al.
In continuation of our recent studies on group 14 rings with exocyclic silicon-carbon double bonds, we report here on the synthesis and reactivity of previously unknown acyl-substituted 1,4-disilacyclohexa-2,5-dienes. 1,1,4,4-Tetrakistrimet...
Iridium(I)- and Rhodium(I)-Olefin Complexes Containing an α-Diimine Supporting Ligand [0.03%]
含有α-二亚胺支撑配体的铱(I)和铑(I)-烯烃配合物
James Kovach,Suzanne R Golisz,William W Brennessel et al.
James Kovach et al.
Iridium(I) complexes of the type IrX(olefin)(α-diimine) (α-diimine = 1,4-bis(2,6-xylyl)-2,3-dimethyl-1,4-diaza-1,3-butadiene; X = Cl, I, Me, O2CCF3; olefin = ethylene, cyclooctene (COE)) were synthesized from the readily available precurs...
Single-Crystal to Single-Crystal Addition of H2 to [Ir(iPr-PONOP)(propene)][BArF 4] and Comparison Between Solid-State and Solution Reactivity [0.03%]
从单晶到单晶的H2加成反应[Ir(iPr-PONOP)(propene)][BArF 4]以及固态和溶液状态下活性对比研究
Cameron G Royle,Lia Sotorrios,Matthew R Gyton et al.
Cameron G Royle et al.
The reactivity of the Ir(I) PONOP pincer complex [Ir(iPr-PONOP)(η2-propene)][BArF 4], 6, [iPr-PONOP = 2,6-(iPr2PO)2C6H3N, ArF = 3,5-(CF3)2C6H3] was studied in solution and the solid state, both experimentally, using molecular density funct...
ZnEt2 as a Precatalyst for the Addition of Alcohols to Carbodiimides [0.03%]
ZnEt2作为醇类加成到碳二亚胺的前催化剂中的应用
Alberto Ramos,Fernando Carrillo-Hermosilla,Rafael Fernández-Galán et al.
Alberto Ramos et al.
We report here the use of commercially available ZnEt2 as an efficient precatalyst for the addition of alcohols to carbodiimides to obtain a wide range of isoureas under mild conditions. In an initial screening using methanol and commercial...
Synthesis and characterization of heteromultinuclear Ni/M clusters (M = Fe, Ru, W) including a paramagnetic (NHC)Ni-WCp*(CO)3 heterobinuclear complex [0.03%]
包括顺磁性(NHC)Ni-WCp*(CO)3异核双金属复合物的杂多核Ni/M簇(M = Fe, Ru, W)的合成与表征
Hsien-Cheng Yu,Joshua Telser,Neal P Mankad
Hsien-Cheng Yu
A diverse range of heteromultinuclear NiI/[MCO] clusters (MCO = CpFe(CO)2, CpRu(CO)2, Cp*W(CO)3) supported by a N-heterocyclic carbene ligand have been synthesized by reacting the NiI precursor, [IPrNi(μ-Cl)]2, with [MCO]- reagents under v...
Structure and Reactivity of [Ru-Al] and [Ru-Sn] Heterobimetallic PPh3-Based Complexes [0.03%]
基于PPh3的钌-铝和钌-锡异双金属配合物的结构与反应性研究
Connie J Isaac,Fedor M Miloserdov,Anne-Frédérique Pécharman et al.
Connie J Isaac et al.
Treatment of [Ru(PPh3)(C6H4PPh2)2H][Li(THF)2] with AlMe2Cl and SnMe3Cl leads to elimination of LiCl and CH4 and formation of the heterobimetallic complexes [Ru(C6H4PPh2)2{PPh2C6H4AlMe(THF)}H] 5 and [Ru(PPh3)(C6H4PPh2)(PPh2C6H4SnMe2)] 6, res...