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Advanced Synthesis & Catalysis

Rhodium(III)‐Catalyzed Synthesis of Cinnolinium Salts from Azobenzenes and Diazo Compounds

Published: 20 June 2018

Author(s): Xiaohong Chen, Guangfan Zheng, Guoyong Song, Xingwei Li

Abstract A Rh(III)‐catalyzed C−H activation of azobenzenes in the coupling with diazo compounds has been realized, providing a straightforward strategy to access functionalized cinnolinium triflates in high yields. This protocol features silver free mild reaction conditions and compatibility with diverse functional groups. The coupling proceeds via initial Rh(III)‐catalyzed C−H alkylation, followed by zinc triflate‐mediated cyclization, where...

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Advanced Synthesis & Catalysis

Oxadiazepine Synthesis by Formal [4+3] Cycloaddition of o ‐Chloromethyl Arylsulfonamides with Nitrones Promoted by NaHCO 3

Published: 20 June 2018

Author(s): Xiaoke Zhang, Yang Pan, Peng Liang, Lu Pang, Xiaofeng Ma, Wei Jiao, Huawu Shao

Abstract An effective and facile method for the synthesis of highly substituted 1,2,3,5‐tetrahydrobenzo[e][1,2,4]‐oxadiazepines is described. A formal [4+3] cycloaddition of N‐(2‐(chloromethyl) phenyl) amides with nitrones afforded benzo[e][1,2,4]‐oxadiazepine derivatives with high atom economy and excellent yields (up to 97%).

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Magnetic Resonance in Chemistry

Libration of phenyl groups detected by VT‐SSNMR : Comparison with X‐ray crystallography

Published: 20 June 2018

Author(s): Carla I. Nieto, Pilar Cabildo, M. Ángeles García, Rosa M. Claramunt, José Elguero, Ibon Alkorta

Abstract The X‐ray crystal structure of 2‐benzyl‐1H‐benzimidazole, 2BnBzIm, was determined at 293 K showing no dynamic phenomena (disorder) of any class. On the other hand, some 13C NMR signals were absent in the CPMAS spectrum (100 MHz, 300 K). We decided to carry out variable‐temperature SSNMR and discovered that the missing signals are ortho and meta carbons of the phenyl ring of the benzyl group. Line‐shape analysis and the Eyring...

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Advanced Synthesis & Catalysis

Oxidative Coupling of Aromatic Amines and Nitrosoarenes: Iodine‐Mediated Formation of Unsymmetrical Aromatic Azoxy Compounds

Published: 20 June 2018

Author(s): Xiaochun Yu, Weijie Ding, Panyu Ge, Shun Wang, Jichang Wang

Abstract I2/DABCO (iodine/1,4‐diazabicyclo[2.2.2]octane)‐mediated oxidative coupling of nitrosobenzenes with aromatic amines was revealed to lead to the production of unsymmetrical aromatic azoxy compounds, instead of azo compounds reported previously in Mills reaction. Our study illustrates that various aromatic amines can be efficiently coupled with nitrosobenzenes to produce unsymmetrical azoxy product, in which more than thirty...

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Zeitschrift für anorganische und allgemeine Chemie

On the Way to N‐Heterocyclic Silylenes with a 1,1′‐Ferrocenediyl Backbone: Synthesis and Structures of Silicon(IV) Compounds of the Type [Fe{(η 5 ‐C 5 H 4 )NR} 2 Si X 2 ]

Published: 20 June 2018

Author(s): Jan Oetzel, Clemens Bruhn, Ulrich Siemeling

Potential precursors for the synthesis of ferrocene‐based N‐heterocyclic silylenes of the type [Fe{(η5‐C5H4)NR}2Si:] (1Si) were investigated. The silicon(IV) dibromides 1aSiBr2 – 1cSiBr2 [a: R = SiMe3, b: R = CH2CMe3, c: R = 3,5‐(CF3)2‐C6H3] as well as the dichlorides 1aSiCl2 and 1bSiCl2 were prepared in high yield. Attempts to synthesize the target silylenes from these silicon(IV) dihalides by reductive methods failed. Strong reducing agent like alkali metals...

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International Journal of Applied Ceramic Technology

Synthesis of novel low‐cost porous gangue microsphere/geopolymer composites and their adsorption properties for dyes

Published: 20 June 2018

Author(s): Shu Yan, Peigang He, Dechang Jia, Qinggang Wang, Jingjing Liu, Jinlong Yang, Yong Huang

Abstract A novel porous coal gangue microsphere/geopolymer (CG/KGP) composite was firstly synthesized by adding gangue microspheres into geopolymer matrix. Effects of precalcined temperature of CG microspheres on the microstructure and specific surface area of the porous CG/KGP particles were systematically investigated. Adsorption properties of the CG/KGP composites were also reported. Results showed that the CG/KGP composites...

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Advanced Functional Materials

Graphene‐Enhanced 3D Chemical Mapping of Biological Specimens at Near‐Atomic Resolution

Published: 20 June 2018

Author(s): Vahid R. Adineh, Changxi Zheng, Qianhui Zhang, Ross K. W. Marceau, Boyin Liu, Yu Chen, Kae J. Si, Matthew Weyland, Tony Velkov, Wenlong Cheng, Jian Li, Jing Fu

Abstract The direct imaging of individual atoms within the cellular context holds great potential for understanding the fundamental physical and chemical processes in organisms. Here, a novel approach for imaging of electrically insulated biological cells by introducing a graphene encapsulation approach to “disguise” the low‐conductivity barrier is reported. Upon successful coating using a water‐membrane‐based protocol, the...

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Advanced Synthesis & Catalysis

Copper‐Catalyzed Domino C−C Bond Cleavage of 2,3‐Unsubstituted Indoles/Indolines and Oxindoles via Oxidation and Directed Insertion of 2‐Aminopyridines: Direct Access to Quinazolinediones

Published: 20 June 2018

Author(s): Owk Ravi, Andhavaram Ramaraju, Balasubramanian Sridhar, Surendar Reddy Bathula

Abstract Copper‐catalyzed domino C−C bond cleavage of 2,3‐unsubstituted Indole/Indolines and Oxindoles through oxygenation followed by insertion of 2‐aminopyridine has been described. This method implies the formation of two new C−N and C−O bonds using molecular oxygen as a sole oxidant for construction of highly valuable Quinazoline‐2,4(1H,3H)‐dione derivatives from readily available substrates.

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Journal of the Science of Food and Agriculture

Effect of postharvest application of ethylene on the profile of phenolic acids and anthocyanins in three blueberry cultivars ( Vaccinium corymbosum )

Published: 20 June 2018

Author(s): Daniela VTA Costa, Domingos PF Almeida, Manuela Pintado

Abstract BACKGROUND The blueberry is a fruit that has been studied extensively for its health benefits, mainly due to its high antioxidant activity. There is a strong correlation between antioxidant activity and total anthocyanin and phenolic compound content. Postharvest treatment using ethylene may be a factor affecting the anthocyanin content. The objective of this work was to analyze postharvest ...

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Chemistry & Biodiversity

Schistosomicidal Activity of Dihydrobenzofuran Neolignans

Published: 20 June 2018

Author(s): Herbert J. Dias, Andressa B. Patrocínio, Mariana C. Pagotti, Murilo J. Fukui, Vanderlei Rodrigues, Lizandra G. Magalhães, Antônio E. M. Crotti

We have evaluated the antischistosomal activity of synthetic dihydrobenzofuran neolignans (DBNs) derived from (±)‐trans‐dehydrodicoumaric acid dimethyl ester (1) and (±)‐trans‐dehydrodiferulic acid dimethyl ester (2) against adult Schistosoma mansoni worms in vitro. Compound 4 ((±)‐trans‐4‐O‐acetyldehydrodiferulic acid dimethyl ester) displayed the most promising activity; at 200 μm, it kills 100 ± 0% of worms after 24 h, which resembles the result...

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Most-accessed articles from each ChemPubSoc Europe, ACES, and GDCh journal

March 2018

 


Zhang Luo, Bing Liu
Shape-Tunable Colloids from Structured Liquid Droplet Templates [Cover Picture]
Angew. Chem. Int. Ed. 10.1002/anie.201802726

Coline Jumeaux, Olov Wahlsten, Stephan Block, Eunjung Kim, Rona Chandrawati, Philip D. Howes, Fredrik Höök, Molly M. Stevens
MicroRNA Detection by DNA-Mediated Liposome Fusion [Communication]
ChemBioChem 2018, vol. 19, p. 434

Isabela C. Man, Hai-Yan Su, Federico Calle-Vallejo, Heine A. Hansen, José I. Martínez, Nilay G. Inoglu, John Kitchin, Thomas F. Jaramillo, Jens K. Nørskov, Jan Rossmeisl
Universality in Oxygen Evolution Electrocatalysis on Oxide Surfaces [Full Paper]
ChemCatChem 2011, vol. 3, p. 1159

Matthias Schäfer, Bernhard Hauck, Jochen Kuhn, Roland Ulber
Analytik mit Licht - Das Smartphone-Photometer [Artikel]
Chem. Unserer Zeit 2018, vol. 52, p. 52

Balaram Mukhopadhyay, Rituparna Das
Chemical O-Glycosylations: An Overview [Review]
ChemistryOpen 2016, vol. 5, p. 401

Hanshen Xin, Xike Gao
Application of Azulene in Constructing Organic Optoelectronic Materials: New Tricks for an Old Dog [Minireview]
ChemPlusChem 2017, vol. 82, p. 945

Miaofang Chi, Harry M. Meyer, Zili Wu, Liangbo Liang, Peter V. Bonnesen, Dale K. Hensley, Rui Peng, Yang Song, Cheng Ma, Bobby G. Sumpter, Adam J. Rondinone
High-Selectivity Electrochemical Conversion of CO2 to Ethanol using a Copper Nanoparticle/N-Doped Graphene Electrode [Full Paper]
ChemistrySelect 2016, vol. 1, p. 6055

Hubert Rauscher, Kirsten Rasmussen, Birgit Sokull-Klüttgen
Regulatory Aspects of Nanomaterials in the EU [Research Article]
Chem. Ing. Tech. 2017, vol. 89, p. 224

Abas Mohsenzadeh, Akram Zamani, Mohammad J. Taherzadeh
Bioethylene Production from Ethanol: A Review and Techno-economical Evaluation [Review]
ChemBioEng Rev. 2017, vol. 4, p. 75

Robert A. W. Dryfe, Briony Setterfield-Price, Joanne Tory, František Hartl
[M(CO)4(2,2'-bipyridine)] (M=Cr, Mo, W) Complexes as Efficient Catalysts for Electrochemical Reduction of CO2 at a Gold Electrode [Communication]
ChemElectroChem 2015, vol. 2, p. 213

Yinghui Xue, Qin Zhang, Tao Zhang, Lei Fu
Black Phosphorus: Properties, Synthesis, and Applications in Energy Conversion and Storage [Focus Review]
ChemNanoMat 2017, vol. 3, p. 352

Maximilian Koy, Frederik Sandfort, Adrian Tlahuext-Aca, Linda Quach, Constantin G. Daniliuc, Frank Glorius
Palladium-Catalyzed Decarboxylative Heck-Type Coupling of Activated Aliphatic Carboxylic Acids Enabled by Visible Light [Communication]
Chem. Eur. J. 2018, vol. 24, p. 4552

Jian Lv, Qi Zhang, Mao Cai, Yanfang Han, Sanzhong Luo
Aromatic Aminocatalysis [Focus Review]
Chem. Asian J. 2018, vol. 13, p. 740

Hidetoshi Noda, Naoya Kumagai, Masakatsu Shibasaki
Abstract [Focus Review]
Asian J. Org. Chem. 10.1002/ajoc.201800013

Albert J. Kooistra, Márton Vass, Ross McGuire, Rob Leurs, Iwan J. P. de Esch, Gert Vriend, Stefan Verhoeven, Chris de Graaf
3D-e-Chem: Structural Cheminformatics Workflows for Computer-Aided Drug Discovery [Full Paper]
ChemMedChem 2018, vol. 13, p. 614

Zhoufeng Bian, Sonali Das, Ming Hui Wai, Plaifa Hongmanorom, Sibudjing Kawi
A Review on Bimetallic Nickel-Based Catalysts for CO2 Reforming of Methane [Review]
ChemPhysChem 2017, vol. 18, p. 3117

Turkan Gamze Ulusoy Ghobadi, Amir Ghobadi, Ekmel Ozbay, Ferdi Karadas
Strategies for Plasmonic Hot-Electron-Driven Photoelectrochemical Water Splitting [Review]
ChemPhotoChem 2018, vol. 2, p. 161

An-Na Cho, Nam-Gyu Park
Impact of Interfacial Layers in Perovskite Solar Cells [Review]
ChemSusChem 2017, vol. 10, p. 3687

Jeffrey A. Rood, Sondra E. Hinman, Bruce C. Noll, Kenneth W. Henderson
The Use of Halide-Substituted Anilines for the Formation of Magnesium Imides [Full Paper]
Eur. J. Inorg. Chem. 2008, p. 3935

D. B. Ramachary [Author Profile]
Eur. J. Org. Chem. 10.1002/ejoc.201800182

46. Deutscher Lebensmittelchemikertag 2017 in Würzburg [Tagung]
Lebensmittelchemie 2018, vol. 72, p. 1

Peter Chen
Chemistry 4.0 [Leitartikel]
Nachr. Chem. 2018, vol. 66, p. 203

Ira Caspari, Gisela Weber-Peukert, Nicole Graulich
Der Einsatz von Modellen zum Erkenntnisgewinn / Eine Unterrichtseinheit zur Förderung der Modellkompetenz im Kontext „Batterie“ unter explizitem Einbezug von Schülervorstellungen [Aus der Schule]
CHEMKON 2018, vol. 25, p. 23

Catharina Goedecke
Why Does Iodine Turn Starch Blue?
ChemViews Magazine 2016

Most cited articles from each ChemPubSoc Europe, ACES, and GDCh journal


2016

 


Shoujun Zhu, Qingnan Meng, Lei Wang, Junhu Zhang, Yubin Song, Han Jin, Kai Zhang, Hongchen Sun, Haiyu Wang, Bai Yang
Highly Photoluminescent Carbon Dots for Multicolor Patterning, Sensors, and Bioimaging
Angew. Chem. Int. Ed. 2013, vol. 52, pp. 3953–3957

Balayeshwanth R. Vummidi, Jawad Alzeer, Nathan W. Luedtke
Fluorescent Probes for G-Quadruplex Structures [Review]
ChemBioChem 2013, vol. 14, pp. 540–558

Zhi-Yuan Gu, Jihye Park, Aaron Raiff, Zhangwen Wei, Hong-Cai Zhou
Metal–Organic Frameworks as Biomimetic Catalysts [Minireview]
ChemCatChem 2014, vol. 6, pp. 67–75

Anthony J. Arduengo, Roland Krafczyk
Auf der Suche nach Stabilen Carbenen [Organische Chemie]
Chem. Unserer Zeit 1998, vol. 32, pp. 6–14

Marc Steinmetz, Stefan Grimme
Benchmark Study of the Performance of Density Functional Theory for Bond Activations with (Ni,Pd)-Based Transition-Metal Catalysts [Full Paper]
ChemistryOpen 2013, vol. 2, pp. 115–124

Philipp Scharf, Jens Müller
Nucleic Acids With Metal-Mediated Base Pairs and Their Applications [Review]
ChemPlusChem 2013, vol. 78, pp. 20–34

Philipp Kaiser, Rajabhau?Bajirao Unde, Christoph Kern, Andreas Jess
Production of Liquid Hydrocarbons with CO2 as Carbon Source based on Reverse Water-Gas Shift and Fischer-Tropsch Synthesis [Research Article]
Chem. Ing. Tech. 2013, vol. 85, pp. 489–499

Xiaosi Zhou, Yu-Guo Guo
Highly Disordered Carbon as a Superior Anode Material for Room-Temperature Sodium-Ion Batteries [Communication]
ChemElectroChem 2014, vol. 1, pp. 83–86

Chuanxi Wang, Zhenzhu Xu, Chi Zhang
Polyethyleneimine-Functionalized Fluorescent Carbon Dots: Water Stability, pH Sensing, and Cellular Imaging [Full Paper]
ChemNanoMat 2015, vol. 1, pp. 122–127

Konggang Qu, Jiasi Wang, Jinsong Ren, Xiaogang Qu
Carbon Dots Prepared by Hydrothermal Treatment of Dopamine as an Effective Fluorescent Sensing Platform for the Label-Free Detection of Iron(III) Ions and Dopamine [Full Paper]
Chem. Eur. J. 2013, vol. 19, pp. 7243–7249

Yinuo Wu, Jun Wang, Fei Mao, Fuk Yee Kwong
Palladium-Catalyzed Cross-Dehydrogenative Functionalization of C(sp2)–H Bonds [Focus Review]
Chem. Asian J. 2014, vol. 9, pp. 26–47

Naohiko Yoshikai, Ye Wei
Synthesis of Pyrroles, Indoles, and Carbazoles through Transition-Metal-Catalyzed C–H Functionalization [Review]
Asian J. Org. Chem. 2013, vol. 2, pp. 466–478

Lluís Ballell, Robert H. Bates, Rob J. Young, Daniel Alvarez-Gomez, Emilio Alvarez-Ruiz, Vanessa Barroso, Delia Blanco, Benigno Crespo, Jaime Escribano, Rubén González, Sonia Lozano, Sophie Huss, Angel Santos-Villarejo, José Julio Martín-Plaza, Alfonso Mendoza, María José Rebollo-Lopez, Modesto Remuiñan-Blanco, José Luis Lavandera, Esther Pérez-Herran, Francisco Javier Gamo-Benito, José Francisco García-Bustos, David Barros, Julia P. Castro, Nicholas Cammack
Fueling Open-Source Drug Discovery: 177 Small-Molecule Leads against Tuberculosis [Full Paper]
ChemMedChem 2013, vol. 8, pp. 313–321

Peter Politzer, Jane S. Murray
Halogen Bonding: An Interim Discussion [Review]
ChemPhysChem 2013, vol. 14, pp. 278–294

Volker Hessel, Dana Kralisch, Norbert Kockmann, Timothy Noël, Qi Wang
Novel Process Windows for Enabling, Accelerating, and Uplifting Flow Chemistry [Review]
ChemSusChem 2013, vol. 6, pp. 746–789

Helena J. Shepherd, Gábor Molnár, William Nicolazzi, Lionel Salmon, Azzedine Bousseksou
Spin Crossover at the Nanometre Scale [Microreview]
Eur. J. Inorg. Chem. 2013, pp. 653–661

Junichiro Yamaguchi, Kei Muto, Kenichiro Itami
Recent Progress in Nickel-Catalyzed Biaryl Coupling [Microreview]
Eur. J. Org. Chem. 2013, pp. 19–30

David Schweinfurth, Naina Deibel, Fritz Weisser, Biprajit Sarkar
Mit Klick zu neuen Liganden [Magazin]
Nachr. Chem. 2011, vol. 59, pp. 937–941
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