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Journal of Mass Spectrometry

GC‐MS aroma characterization of vegetable matrices: Focus on 3‐alkyl‐2‐methoxypyrazines

Published: 16 August 2018

Author(s): Delvana Mutarutwa, Luciano Navarini, Valentina Lonzarich, Dario Compagnone, Paola Pittia

Abstract 3‐Alkyl‐2‐methoxypyrazines (MPs) are a very important class of volatile organic compounds (VOCs), intensively characterizing the aroma of several food products including fruits and vegetables. Due to the very low orthonasal sensory threshold, low amounts of MPs may act as key positive or negative aroma compounds. The analysis of these volatiles in foods is then remarkably important, and it may be very challenging as...

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ChemMedChem

Semi‐synthesis and Structure–Activity Relationship of Neuritogenic Oleanene Derivatives

Published: 16 August 2018

Author(s): Linglin Bian, Shining Cao, Lihong Cheng, Atsuo Nakazaki, Toshio Nishikawa, Jianhua Qi

Abstract (3S,4R)‐23,28‐Dihydroxyolean‐12‐en‐3‐yl (2E)‐3‐(3,4‐dihydroxyphenyl)acrylate (1 a), which possesses significant neuritogenic activity, was isolated from the traditional Chinese medicine (TCM) plant, Desmodium sambuense. To confirm the structure and to assess biological activity, we semi‐synthesized 1 a from commercially available oleanolic acid. A series of novel 1 a derivatives was then designed and synthesized for a structure–activity relationship (SAR)...

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Chemistry - A European Journal

Phosphenium‐Cation‐Mediated Formal Cycloaddition Approach to Benzophospholes

Published: 16 August 2018

Author(s): Kazutoshi Nishimura, Yuto Unoh, Koji Hirano, Masahiro Miura

Abstract A phosphenium‐cation‐mediated formal [3+2]‐cycloaddition reaction of internal alkynes is reported. The reaction proceeds under metal‐free conditions to give the corresponding C−P rearranged benzophospholes regioselectively, even when ortho‐ and para‐substituted arylphosphine oxides are starting substrates. Mechanistic studies by 31P{1H} NMR analysis suggest an involvement of three‐membered phosphirenium cation species and C−P rearrangement prior...

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Chemistry - A European Journal

Chemical Tuning of Zwitterionic Ionic Liquids for Variable Thermophysical Behaviours, Nanostructured Aggregates and Dual‐Stimuli Responsiveness

Published: 16 August 2018

Author(s): Yajnaseni Biswas, Pratyush Ghosh, Tarun K. Mandal

Abstract The design and synthesis of a series of zwitterionic ionic liquids (ZILs) to understand the structure–property relationship towards an increase of the thermal stability, a variation of the glass transition temperature, the shape‐tuning of nanostructured aggregates and the tuning of the stimuli responsiveness are demonstrated. The substitution reaction of imidazole with various aliphatic and aromatic bromides followed by the...

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Advanced Synthesis & Catalysis

Synthesis of α,β‐Dicarbonylhydrazones by Aerobic Manganese‐Catalysed Oxidation.

Published: 16 August 2018

Author(s): Carlos J. Carrasco, Francisco Montilla, Eleuterio Álvarez, Agustín Galindo

Abstract A practical, simple, and efficient manganese‐catalysed oxidation of C(sp2)−H bond in readily available β‐carbonylenehydrazine under aerobic conditions has been developed. This protocol exhibits a wide range of functional group tolerance in β‐carbonylenehydrazines to afford α,β‐dicarbonylhydrazones. Experimental and theoretical results suggest that the reaction very likely proceeds through a radical pathway via a hydrogen‐atom‐transfer...

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ChemSusChem

The Effect of Organic Additives on the Activity and Selectivity of CO 2 Electroreduction: The Role of Functional Groups

Published: 16 August 2018

Author(s): Wenbin Xu, Yanling Qiu, Taotao Zhang, Xianfeng Li, Huamin Zhang

Abstract Electrochemical reduction of CO2 (ERC) to useful chemicals is an environmentally and technologically significant process. The process is confronted with significant challenges to simultaneously enhance the catalyst activity and product selectivity. In this paper, the effects of organic additives on the ERC process were systematically investigated by using DFT to screen additives with different functional groups for enhanced...

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ChemMedChem

X‐ray Structures and Feasibility Assessment of CLK2 Inhibitors for Phelan–McDermid Syndrome

Published: 16 August 2018

Author(s): Joerg Kallen, Christian Bergsdorf, Bertrand Arnaud, Mario Bernhard, Murielle Brichet, Amanda Cobos‐Correa, Azeddine Elhajouji, Felix Freuler, Ivan Galimberti, Christel Guibourdenche, Simon Haenni, Sandra Holzinger, Juerg Hunziker, Aude Izaac, Markus Kaufmann, Lukas Leder, Hans‐Joerg Martus, Peter von Matt, Valery Polyakov, Patrik Roethlisberger, Guglielmo Roma, Nikolaus Stiefl, Marianne Uteng, Andreas Lerchner

Abstract CLK2 inhibition has been proposed as a potential mechanism to improve autism and neuronal functions in Phelan–McDermid syndrome (PMDS). Herein, the discovery of a very potent indazole CLK inhibitor series and the CLK2 X‐ray structure of the most potent analogue are reported. This new indazole series was identified through a biochemical CLK2 Caliper assay screen with 30k compounds selected by an in silico approach. Novel...

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ChemMedChem

Progress in the Development of Platelet‐Activating Factor Receptor (PAFr) Antagonists and Applications in the Treatment of Inflammatory Diseases

Published: 16 August 2018

Author(s): Isabel K. Hyland, Ronan F. O'Toole, Jason A. Smith, Alex C. Bissember

Abstract Platelet‐activating factor (PAF) and its receptor (PAFr) have been implicated in a wide range of diseases and disorders that originate from the activation of inflammatory pathways. Although the exact structure of the binding site on the PAFr remains unknown, the PAFr is a well‐established therapeutic target, and an array of structurally diverse PAFr antagonists have been identified. These include compounds that are...

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Journal of the Science of Food and Agriculture

Investigation on characteristics of 3D printing using Nostoc sphaeroides biomass

Published: 16 August 2018

Author(s): Yan‐Jun An, Chao‐Fan Guo, Min Zhang, Ze‐Ping Zhong

Abstract BACKGROUND Gel‐like constructs can be produced using an extrusion‐based 3D food printing (3D‐FP) technique. Nostoc sphaeroides biomass is a natural gel material. Considering its good nutrition and rheological properties, these algae were chosen in this study as supply material (ink) for 3D‐FP. With this gel material, the extrusion‐based 3D printing system was set as a model, and the printing behavior was...

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Journal of Mass Spectrometry

ESI‐TOF mass spectrometry of cationic carbosilane dendrimers: A potent tool for characterization of structural defects

Published: 16 August 2018

Author(s): Petra Cuřínová, Alena Krupková, Lucie Červenková Šťastná, Monika Müllerová, Jan Čermák, Tomáš Strašák

Abstract Macromolecular polyelectrolytes are gaining considerable attention for the application in medicine that implies their detailed characterization. We have successfully applied electrospray ionization mass spectrometry (ESI MS) to the analysis of defects in the structure of three generations of polycationic carbosilane dendrimers bearing series of quarternary phosphonium groups at their periphery. Besides expected defects...

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

June 2018

 


Saki Ichikawa, Shaolin Zhu, Stephen L. Buchwald
A Modified System for the Synthesis of Enantioenriched N-Arylamines through Copper-Catalyzed Hydroamination [Communication]
Angew. Chem. Int. Ed. 2018, vol. 57, p. 8714

Parker Nichols, Alexandra Born, Morkos Henen, Dean Strotz, Celestine N Chi, Peter Güntert, Beat Rolf Vögeli
Extending the Applicability of Exact Nuclear Overhauser Enhancements to Large Proteins and RNA [Minireview]
ChemBioChem 2018

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

Klaus Roth
Die Suche nach dem Blau der „Blauen Blume“ [Artikel]
Chem. Unserer Zeit 2018, vol. 52, p. 192

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

Philip C. Andrews, Lisandra L. Martin, Alexandr N. Simonov
Leone Spiccia Memorial Issue [Editorial]
ChemPlusChem 2018, vol. 83, p. 548

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

Lantao Liu, Yanli Zhou, Shuang Liu, Maotian Xu
The Applications of Metal−Organic Frameworks in Electrochemical Sensors [Review]
ChemElectroChem 2018, vol. 5, p. 6

Santosh K. Tiwari, Raghvendra Kumar Mishra, Sung Kyu Ha, Andrzej Huczko
Evolution of Graphene Oxide and Graphene: From Imagination to Industrialization [Focus Review]
ChemNanoMat 2018, vol. 4, p. 598

R. Aleyda Garza-Sanchez, Tuhin Patra, Adrian Tlahuext-Aca, Felix Strieth-Kalthoff, Frank Glorius
DMSO as a Switchable Alkylating Agent in Heteroarene C−H Functionalization [Communication]
Chem. Eur. J. 2018

Sandip G. Agalave, Suleman R. Maujan, Vandana S. Pore
Click Chemistry: 1,2,3‐Triazoles as Pharmacophores [Focus Review]
Chem. Asian J. 2011, vol. 6, p. 2696

Yunhe Jin, Hua Fu
Visible-Light Photoredox Decarboxylative Couplings [Focus Review]
Asian J. Org. Chem. 2017, vol. 6, p. 368

Christopher J Matheson, Kimberly A Casalvieri, Donald S Backos, Philip Reigan
Development of potent pyrazolopyrimidinone-based WEE1 inhibitors with limited single-agent cytotoxicity for cancer therapy [Full Paper]
ChemMedChem 2018

Gloria Tabacchi
Supramolecular Organization in Confined Nanospaces [Review]
ChemPhysChem 2018, vol. 19, p. 1249

Emily B. Corcoran, François Lévesque, Jonathan P. McMullen, John R. Naber
Studies Toward the Scaling of Gas-Liquid Photocycloadditions [Article]
ChemPhotoChem 2018

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

Ross J. Marshall, Ross S. Forgan
Postsynthetic Modification of Zirconium Metal-Organic Frameworks [Microreview]
Eur. J. Inorg. Chem. 2016, p. 4310

Romaric Gérardy, Noémie Emmanuel, Thomas Toupy, Victor-Emmanuel Kassin, Nelly Ntumba Tshibalonza, Michaël Schmitz, Jean-Christophe M. Monbaliu
Continuous Flow Organic Chemistry: Successes and Pitfalls at the Interface with Current Societal Challenges [Microreview]
Eur. J. Org. Chem. 2018, p. 2301

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

Markus Hiebel, Katharina Reh
Kreislaufwirtschaft: Von Anfang an ans Ende denken [Industrie & Technik]
Nachr. Chem. 2018, vol. 66, p. 606

Alexander Engl, Alexandra Schmelzer, Björn Risch
Chemie Pur - Unterrichten in der Natur: Ätherischen Ölen auf der Spur [Artikel]
CHEMKON 2018, vol. 25, p. 7

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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