Catalyst-Controlled Regioselectivity in Pd-Catalyzed Aerobic Oxidative Arylation of Indoles [0.03%]
钯催化吲哚有氧氧化芳基化的导向基团控制区域选择性研究
Dian Wang,Chase A Salazar,Shannon S Stahl
Dian Wang
Pd-catalyzed C-H arylation of heteorarenes is an important and widely studied synthetic transformation; however, the regioselectivity is often substrate-controlled. Here, we report catalyst-controlled regioselectivity in the Pd-catalyzed ox...
Fluorinated Cycloplatinated(II) Complexes Bearing Bisphosphine Ligands as Potent Anticancer Agents [0.03%]
含双膦配体的氟化二氯铂配合物作为有效的抗肿瘤试剂
Hamid R Shahsavari,Jiyun Hu,Samira Chamyani et al.
Hamid R Shahsavari et al.
A family of cationic cycloplatinated(II) complexes [Pt(dfppy)(P^P)]Cl, dfppy = 2-(2,4-difluorophenyl)pyridine, incorporating bisphosphine ligands, P^P = bis(diphenylphosphino)methane (1, dppm), 1,2-bis(diphenylphosphino)ethane (2, dppe) and...
Generation of Masked TiII Intermediates from TiIV Amides via β-H Abstraction or Alkyne Deprotonation: An Example of Ti-Catalyzed Nitrene-Coupled Transfer Hydrogenation [0.03%]
通过β-H抽提或炔氢脱质子生成TiIV酰胺的TiIII掩蔽中间体：一个Ti催化 nitrene-coupled转移氢化的例子
Adam J Pearce,Yukun Cheng,Rachel J Dunscomb et al.
Adam J Pearce et al.
Simple Ti amide complexes are shown to act as sources for masked TiII intermediates via several pathways, as demonstrated through the investigation of a unique Ti-catalyzed nitrene-coupled transfer hydrogenation of 3-hexyne. This reaction p...
The Effect of Added Ligands on the Reactions of [Ni(COD)(dppf)] with Alkyl Halides: Halide Abstraction May Be Reversible [0.03%]
配体对[Ni(COD)(dppf)]与烷基卤化物反应的影响：卤素抽象可能是可逆的
Megan E Greaves,Thomas O Ronson,Feliu Maseras et al.
Megan E Greaves et al.
The reactions of dppf-nickel(0) with alkyl halides proceed via three-coordinate nickel(0) intermediates of the form [Ni(dppf)(L)]. The effects of the identity of the added ligand (L) on catalyst speciation and the rates of reactions of [Ni(...
Routes to High-Performing Ruthenium-Iodide Catalysts for Olefin Metathesis: Ligand Lability Is Key to Efficient Halide Exchange [0.03%]
路易斯配体的卤素交换活性是高效碘化钌催化剂的设计关键
Christian O Blanco,Daniel L Nascimento,Deryn E Fogg
Christian O Blanco
Clean, high-yielding routes are described to ruthenium-diiodide catalysts that were recently shown to enable high productivity in olefin metathesis. For the second-generation Grubbs and Hoveyda catalysts (GII: RuCl2(H2IMes)(PCy3)(=CHPh); HI...
Effect of the 2-R-Allyl and Chloride Ligands on the Cathodic Paths of [Mo(η3-2-R-allyl)(α-diimine)(CO)2Cl] (R = H, CH3; α-diimine = 6,6'-Dimethyl-2,2'-bipyridine, Bis(p-tolylimino)acenaphthene) [0.03%]
2-R-丙烯基和氯代配体对[Mo(η3-2-R-丙烯基)(α-二亚胺)(CO)2Cl] (R = H, CH3; α-二亚胺 = 6,6'-二甲基-2,2'-联吡啶, 双(p-甲苯亚氨基)苊烯)阴极过程的影响
James O Taylor,Ryan Culpeck,Ann M Chippindale et al.
James O Taylor et al.
The new, formally Mo(II) complexes [Mo(η3-2-R-allyl)(6,6'-dmbipy)(CO)2Cl] (6,6'-dmbipy = 6,6'-dimethyl-2,2'-bipyridine; 2-R-allyl = allyl for R = H, 2-methallyl for R = CH3) and [Mo(η3-2-methallyl)(pTol-bian)(CO)2Cl] (pTol-bian = bis(p-to...
Synthesis of Chiral Bifunctional NHC Ligands and Survey of Their Utilities in Asymmetric Gold Catalysis [0.03%]
手性双功能NHC配体的合成及其在不对称金催化中的应用研究
Jun-Qi Zhang,Yunkui Liu,Xing-Wang Wang et al.
Jun-Qi Zhang et al.
The synthesis and characterization of the chiral bifunctional NHC ligands based on the imidazo[1,5-a]pyridine (ImPy) scaffold are described. These ligands possess a fluxional biaryl axis and a chiral center. The configurational stability of...
Nitrile Oxidation at a Ruthenium Complex leading to Intermolecular Imido Group Transfer [0.03%]
钌配合物介导的腈氧化及分子间亚氨基转移反应
James E Bird,Cole A Hammond,Kjersti G Oberle et al.
James E Bird et al.
The oxidation of an acetonitrile ligand coordinated to ruthenium is explored in deuterated dimethylsulfoxide by 1H NMR spectroscopy. When oxidized with an iodosoarene oxygen atom transfer (OAT) reagent, kinetic studies demonstrate that the ...
Masked Radicals: Iron Complexes of Trityl, Benzophenone, and Phenylacetylene [0.03%]
被掩蔽的自由基：三苯甲基、苯乙酮和苯丙烯铁配合物
K Cory MacLeod,Ida M DiMucci,Edward P Zovinka et al.
K Cory MacLeod et al.
We report the first Fe─CPh3 complex, and show that the long Fe─C bond can be disrupted by neutral π-acceptor ligands (benzophenone and phenylacetylene) to release the triphenylmethyl radical. The products are formally iron(I) complexes, ...
Manganese-Catalyzed Hydrogenation of Ketones under Mild and Base-free Conditions [0.03%]
温和无碱条件下丙酮的锰催化氢化反应
Stefan Weber,Julian Brünig,Luis F Veiros et al.
Stefan Weber et al.
In this paper, several Mn(I) complexes were applied as catalysts for the homogeneous hydrogenation of ketones. The most active precatalyst is the bench-stable alkyl bisphosphine Mn(I) complex fac-[Mn(dippe) (CO)3(CH2CH2CH3)]. The reaction p...