Synthesis of Indolyl Phenyl Diketones through Visible-Light-Promoted Ni-Catalyzed Intramolecular Cyclization/Oxidation Sequence of Ynones [0.03%]
镍催化烯酮 intramolecular cyclization/氧化串联反应合成吲哚基苯并二酮化合物
Yufeng Zhou,Yaping Wang,Peidong Xu et al.
Yufeng Zhou et al.
The combination of visible light catalysis and Ni catalysis has enabled the synthesis of indolyl phenyl diketones through the cyclization/oxidation process of ynones. This reaction proceeded under mild and base-free conditions and showed a ...
Synergistic Merger of Ketone, Halogen Atom Transfer (XAT), and Nickel-Mediated C(sp3)-C(sp2) Cross-Electrophile Coupling Enabled by Light [0.03%]
由光驱动的酮、卤素原子转移(XAT)和镍介导的sp3 - sp2交叉亲电偶联的协同合并反应
Alisha Rani Tripathy,Akash Bisoyi,Arya P et al.
Alisha Rani Tripathy et al.
In the present manuscript, we have developed a unique catalytic system by merging photoexcited ketone catalysis, halogen atom transfer (XAT), and nickel catalysis to forge C(sp3)-C(sp2) cross-electrophile coupling products from unactivated ...
Quadrupolar, Highly Polarized Dyes: Emission Dependence on Viscosity and Selective Mitochondria Staining [0.03%]
quadrupolar、高度极化的染料：发射粘度依赖性和选择性线粒体标记
Mariusz Tasior,Olena Vakuliuk,Antoni Wrzosek et al.
Mariusz Tasior et al.
Quadrupolar A-D-A-type 1,4-dihydropyrrolo[3,2-b]pyrroles (DHPPs) bearing pyridinium and quinolinium substituents emit in the 500-600 nm region. The enhancement of electronic communication between the electron-rich heterocyclic core and elec...
From Diaminosilylenes to Silapyramidanes: Making Sense of the Stability of Divalent Silicon Compounds [0.03%]
从二氨基硅烷到硅吡啶烷：理解二价硅化合物的稳定性
Kristian Torstensen,Abhik Ghosh
Kristian Torstensen
Since the discovery of decamethylsilicocene over three decades ago, chemists have successfully isolated a variety of divalent silicon compounds by orchestrating steric and electronic effects to their advantage. Two broad strategies of elect...
Friedel-Crafts - Type Arylation Strategy for the Conversion of Alkyl 2-((Diphenoxyphosphoryl)oxy)-2-arylacetates to α,α-Diaryl Esters [0.03%]
Friedel-Crafts类型芳基化策略用于将烷基2-((二苯氧膦酰基)氧基)-2-芳基乙酸酯转化为α,α-二芳基酯
Kauê C Capellaro,Tales A C Goulart,Rafael D C Gallo et al.
Kauê C Capellaro et al.
An arylation strategy allowing the conversion of alkyl 2-((diphenoxyphosphoryl)oxy)-2-arylacetates to α,α-diaryl esters is reported. This transformation can be promoted by TfOH when the starting organic phosphates do not carry para-alkoxy...
Alexander Umanzor,Nicholas A Garcia,Courtney C Roberts
Alexander Umanzor
Phosphinooxazoline (PHOX) ligands have been used to control the regio- and enantioselectivity in a wide variety of metal-catalyzed reactions. Despite their widespread use, PHOX ligands have never been studied in metal-aryne complexes. Herei...
Series of Protonated Nitrogen Bases with a Weakly Coordinating Counteranion: Observation of the 14N-1H Spin-Spin Coupling [0.03%]
带有弱配位反阴离子的质子化氮碱类衍生物系列：观测到14N-1H自旋耦合
Maria C Carrasco,Firoz Shah Tuglak Khan,Shabnam Hematian
Maria C Carrasco
A distinguished triplet splitting pattern for the 14N-1H couplings in the proton signals of a series of protonated nitrogen bases-aliphatic and aromatic amines, as well as pyridines-with the weakly coordinating tetrakis(pentafluorophenyl)bo...
Influence of Cage Effects in Directing the Outcome of C-X Bond Forming Reactions [0.03%]
笼效应在C-X键形成反应结果中的导向作用
Zihang Qiu,Constanze N Neumann
Zihang Qiu
Radical reactions have recently experienced a resurgence in organic chemistry after many decades of being considered to be too unselective to offer a viable solution for complex synthetic problems. Radical intermediates often have a number ...
Modeling of Optical Band-Gap Values of Mixed Oxides Having Spinel Structure AB2O4 (A = Mg, Zn and B = Al, Ga) by a Semiempirical Approach [0.03%]
半经验方法模拟具有尖晶石结构AB2O4(A = Mg, Zn 和 B = Al, Ga)的混合氧化物的光学带隙值
Francesco Di Quarto,Andrea Zaffora,Francesco Di Franco et al.
Francesco Di Quarto et al.
Spinel oxides with the general formula AB2O4 comprise a large family of compounds covering a very wide range of band-gap values (1 eV < Eg < 8 eV) as a function of the nature of the metallic cations A and B. Owing to this, the physical prop...
Diazines and Triazines as Building Blocks in Ligands for Metal-Mediated Catalytic Transformations [0.03%]
作为金属介导的催化转化反应配体构建模块的二嗪和三嗪
Julianna S Doll,Felix J Becker,Dragoş-Adrian Roşca
Julianna S Doll
Pyridine is a ubiquitous building block for the design of very diverse ligand platforms, many of which have become indispensable for catalytic transformations. Nevertheless, the isosteric pyrazine, pyrimidine, and triazine congeners have en...