Ruthenium Bis-Sulfonate Complexes: Synthesis and Application in Asymmetric Hydrogenation [0.03%]
用于不对称氢化的二磺酸盐配合物的合成及应用研究
Yifei Zhou,Pim Vink,Ibrahim Kılınç et al.
Yifei Zhou et al.
A series of Ru-(L)-(X)2 complexes (L = bidentate ligand; X = OMs, OTs, OTf) was synthesized and characterized. Ru-(BINAP)-(OMs)2 showed improved catalytic performance over the established Ru-(BINAP)-(OAc)2 catalyst, highlighting the impact ...
Transition-Metal-Based Dearomatization Strategy for the Synthesis of Functionalized cis-Tetrahydro-2-Oxindoles [0.03%]
金属催化的去芳香化策略合成功能化cis-四氢-2-氧吲哚类化合物
Paolo Siano,Louis A Diment,Daniel J Siela et al.
Paolo Siano et al.
cis-Tetrahydro-2-oxindoles are valuable scaffolds in medicinal chemistry. Herein, we report a transition-metal-mediated dearomatization strategy to access these compounds. The process begins with the coordination of a phenyl sulfone by a tu...
A Change in C-H Activation Mechanism: Experimental and Computational Investigations of Rh-Catalyzed Disubstituted Benzene Functionalization [0.03%]
C-H活化机制的改变：Rh催化二取代苯功能化的实验和计算研究
Christopher W Reid,Chi Zhang,Lauren E Baptiste et al.
Christopher W Reid et al.
We report the ethenylation of 1,3- and 1,2-disubstituted benzenes using [(η2-C2H4)2Rh-(μ-OAc)]2 as a catalyst precursor and Cu-(OPiv)2 as the oxidant. The regioselectivity of alkenylation for 1,3-disubstituted benzenes produces 3,5-disubs...
Alannah C M Thomas,Estelle M Bouchat,Kyle G Pearce et al.
Alannah C M Thomas et al.
The C-tert-butyl substituted azacyclopropenylaluminate, [(SiNDipp)-Al-η2-{NCt-Bu}-K]∞ (SiNDipp = (CH2SiMe2NDipp)2) reacts with both aryl- and alkyl-substituted nitriles. In contrast to previously reported attempts to effect C-C bond forma...
Macrocyclic Ruthenium Ring Expansion Metathesis Polymerization Initiators Exhibit Tether Length-Dependent Behavior [0.03%]
巨环钌类开环易位聚合引发剂表现出连接链长依赖行为
Meredith N Pomfret,Lucy P Miller,Nicholas P Serck et al.
Meredith N Pomfret et al.
Polymers with a cyclic architecture are invaluable constructs for a variety of materials science and engineering applications. Due to their macrocyclic nature, these plastics are imbued with enhanced mechanical durability; a single scission...
Rhenium Chalcogenide Clusters Containing para-Substituted Phenylacetylide Ligands: Synthesis, Characterization, and Investigation of Substituent Effects on Spectroscopic and Electrochemical Properties [0.03%]
含对位取代苯乙炔配体的铼硫属元素簇：合成、表征及取代基效应的研究
Katherine L Helmink,Cory A Hicks,B Sage Lauper-Cook et al.
Katherine L Helmink et al.
Four new organometallic [Re6Se8]2+-based cluster complexes containing para-substituted phenylacetylide ligands, [Re6Se8(PEt3)5(CC-C6H4-X)]-(SbF6) where X = NO2, CO2Me, CH3, and OMe, have been synthesized and fully characterized using 1H, ...
Design of Neutral Ni[N,N] Catalysts for High-Density Polyethylene Formation: Insights into Catalyst Deactivation [0.03%]
中性Ni[N,N]催化剂的设计用于高密度聚乙烯的合成及其失活机理的研究
Bence Szabó,Lennox W Stewart,Georgina M Rosair et al.
Bence Szabó et al.
Neutral Ni-[N,O] and cationic Ni-[N,N] complexes are two prominent classes of catalysts for the polymerization of ethylene. We report the amalgamation of these motifs and describe the synthesis and catalytic activity of two neutral Ni-[N,N]...
Flash Communication: Well-Defined Paramagnetic Polyhydrido-Bridged Iron-Iridium Clusters [0.03%]
闪存通讯：明确的参量顺磁聚氢化物连接的铁-铱簇集群
Zachary Dubrawski,Billie Shearman,Naïme Soulé et al.
Zachary Dubrawski et al.
Polyhydrido transition metal complexes are a constant source of interest due to their variety in bonding and reactivity. Yet, well-defined paramagnetic polyhydrido systems are relatively rare given their instability. Herein, we extend the p...
Synthesis, Characterization, and Catalytic Activity of Gold Complexes Bearing Bicyclic Silicon and Germanium Anionic Ligands [0.03%]
含 bicyclic 硅和锗阴离子配体的金配合物的合成、表征及催化性能研究
Pamela Adienes Benzan Lantigua,Martin Lutz,Marc-Etienne Moret
Pamela Adienes Benzan Lantigua
Silanides ([R3Si-]) and germanides ([R3Ge-]) are attracting attention as donor ligands for transition metals, but their use as supporting ligands in catalysis is limited, often due to their high reactivity. In this study, we report the prep...
Activation and Functionalization of Organic Disulfides by Bis(Perfluoroalkyl) Complexes of Nickel(II) [0.03%]
双(全氟烷基)镍(II)配合物活化及有机二硫的衍生化反应
Cherry Mae T Ravidas,Roger E Cramer,David A Vicic
Cherry Mae T Ravidas
The [(MeCN)2Ni-(Rf)2] platform was used to study the oxidative addition of 8,8'-diquinolyl disulfide. The oxidative addition proceeds to afford [Ni-(Rf)2(SR)2] intermediates, which then eliminate Raryl-S-Rfluoroalkyl products through consec...