Theoretical Photoelectron Spectroscopy of Low-Valent Carbon Species: A ∼6 eV Range of Ionization Potentials among Carbenes, Ylides, and Carbodiphosphoranes [0.03%]
低氧化态碳化合物的理论光电子谱学：碳烯、亚胺和碳二磷烷之间的离子化势差约为6eV
Abhik Ghosh,Jeanet Conradie
Abhik Ghosh
High-quality density functional theory calculations underscore a nearly 6 eV range for the ionization potentials (IPs) of neutral, low-valent carbon compounds, including carbenes, ylides, and zero-valent carbon compounds (carbones) such as ...
Photochemical [2 + 2] Cycloaddition of Alkenes with Maleimides: Highlighting the Differences between N-Alkyl vs N-Aryl Maleimides [0.03%]
烯烃与马来酰亚胺的光化学[2+2]环加成：N-烷基与N-芳基马来酰亚胺的区别
Elpida Skolia,Christoforos G Kokotos
Elpida Skolia
Throughout the last 15 years, there has been increased research interest in the use of light promoting organic transformations. [2 + 2] Cycloadditions are usually performed photochemically; however, literature precedent on the reaction betw...
Copper(I)-Catalyzed Regio- and Stereoselective Silaboration of Terminal Allenes [0.03%]
末端丙二烯的区域和立体选择性硅硼化反应：铜催化
Yu Ozawa,Hisao Koriyama,Yuma Shiratori et al.
Yu Ozawa et al.
Organic compounds bearing both silyl and boryl groups are important building blocks in organic synthesis because of the adequate reactivity of the silyl and boryl groups and high stereospecificity in their derivatization reactions. The diff...
Stereoselective Synthesis of Tri- and Tetrasubstituted Olefins via 1,6-Additions of Diazo Compounds and Their Precursors to p-Quinone Methides [0.03%]
通过叠氮化合物及其前体与对苯醌甲素的1,6-加成立体选择性合成三和四取代烯烃
Soumyaranjan Pati,Soniya Rayi,Irishi N N Namboothiri
Soumyaranjan Pati
Reactions of para-quinone methides (p-QMs) with α-diazo-β-ketosulfones and their corresponding esters as well as simple β-dicarbonyl compounds and β-ketosulfones have been carried out under basic conditions. While the reaction of diazos...
Synthesis and Physicochemical Properties of 2-SF5-(Aza)Indoles, a New Family of SF5 Heterocycles [0.03%]
含SF5异环的新家族2-SF5-（aza）吲哚的合成与理化性质研究
Vincent Debrauwer,Ivo Leito,Märt Lõkov et al.
Vincent Debrauwer et al.
Structural diversity in heterocyclic chemistry is key to unlocking new properties and modes of action. In this regard, heterocycles embedding emerging fluorinated substituents hold great promise. Herein is described a strategy to access 2-S...
Turn-On Fluorescent Probe Based on a Dansyl Triarginine Peptide for Ganglioside Imaging [0.03%]
基于丹磺酰三精氨酸肽的靶向神经节苷脂荧光探针
Kazunori Matsuura,Koichi Hisamoto,Tomoya Tanaka et al.
Kazunori Matsuura et al.
Gangliosides play pivotal biological roles in the animal cell membranes, and it is vital to develop fluorescent probes for imaging them. To date, various artificial receptors for ganglioside imaging have been developed; however, turn-on flu...
Dyedauxiliary Group Strategy for the α-Functionalization of Ketones and Esters [0.03%]
酮和酯的α-官能团化反应中的染料辅助基策略
Lorenzo Di Terlizzi,Ivana Cola,Carlotta Raviola et al.
Lorenzo Di Terlizzi et al.
The synthesis of α-arylketones and α-arylazo esters has been achieved in mixed organic-aqueous media under photocatalyst- and metal-free conditions via visible light activation of arylazo sulfones in the presence of enol silyl ethers and ...
Porphyrins as Promising Photocatalysts for Red-Light-Induced Functionalizations of Biomolecules [0.03%]
用于生物分子红光诱导官能化的有前景的光催化剂--卟啉类化合物
Katarzyna Rybicka-Jasińska,Tomasz Wdowik,Klaudia Łuczak et al.
Katarzyna Rybicka-Jasińska et al.
Red-light enables deeper material penetration, which is important for biological applications and has consequences for chemical synthesis. Therefore, the search for new photocatalysts that absorb in this region is crucial. Despite the unden...
Effect of Borate Cocatalysts toward Activity and Comonomer Incorporation in Ethylene Copolymerization by Half-Titanocene Catalysts in Methylcyclohexane [0.03%]
硼催化剂助剂对半钛系催化剂乙烯共聚活性及共聚单体插入率的影响——甲基环己烷中的研究
Suphitchaya Kitphaitun,Takuya Fujimoto,Yosuke Ochi et al.
Suphitchaya Kitphaitun et al.
Ethylene copolymerizations with 2-methyl-1-pentene, 1-dodecene (DD), vinylcyclohexane (VCH), [Me2Si(C5Me4)(N t Bu)]TiCl2 (1), Cp*TiMe2(O-2,6- i Pr2-4-RC6H2) [R = H (2), SiEt3 (3)]-borate, and [A(H)]+[BAr4]- [Ar = C6F5; A(H)+ = N+(H)Me(n-C18...
Alternatives to Iridium: A Polyaza[7]helicene as a Strongly Reductive Visible Light Photoredox Catalyst [0.03%]
铱的替代品：一种强烈的可视光光电还原催化剂多亚杂[7]ヘリセ纳烃
Johannes Rocker,Till Opatz
Johannes Rocker
The use of a readily accessible polyazahelicene as a strongly reducing metal-free alternative to the commonly used precious metal based photoredox catalysts is demonstrated. An improved two-step synthesis of the catalyst is described, and i...