☆ 4.8 Article

Distillable Ionic Liquids: Reversible Amide OAlkylation

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2013)

期刊

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

卷 52, 期 50, 页码 13392-13396

出版社

WILEY-V C H VERLAG GMBH

DOI: 10.1002/anie.201306476

关键词

alkylation; amides; computational chemistry; cyclic voltammetry; ionic liquids

类别

Chemistry, Multidisciplinary

资金

Ministry of Education in Singapore [RG21/09]

向作者/读者索取更多资源

Protocol

Reagent

作者

我是这篇论文的作者

点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.8

评分不足

次要评分

新颖性

-

重要性

-

科学严谨性

-

评价这篇论文

推荐

Article Engineering, Chemical

Selective recovery of platinum by combining a novel reusable ionic liquid with electrodeposition

Muhan Chen, Shunling Li, Ci Jin, Min Shao, Zhangjie Huang

Summary: Five new imidazolium ionic liquids were synthesized and evaluated for their efficiency in precipitating PtCl62- in HCl media. A novel mixed-ILs system showed excellent extraction efficiency for Pt(IV) from mixed metal solutions, selectively separating Pt(IV) ions from metal ions of Rh(III), Fe3+, Ni2+, Cu2+, and Zn2+. Surface characterization techniques confirmed the successful electrodeposition of metallic Pt on the cathode surfaces.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

添加到收藏夹

Article Chemistry, Physical

Synthesis and Characterization of a Novel Hydroquinone Sulfonate-Based Redox Active Ionic Liquid

Farida H. Aidoudi, Alessandro Sinopoli, Muthumeenal Arunachalam, Belabbes Merzougui, Brahim Aissa

Summary: The synthesis of a novel redox-active ionic liquid (RAIL), namely 1-butyl-3-methylimidazolium hydroquinone sulfonate ((BMIM)(HQS)), was reported. Characterization tests showed that (BMIM)(HQS) possesses high stability and low volatility. The electrochemical behavior of (BMIM)(HQS) was found to be temperature dependent and diffusion controlled.

MATERIALS (2021)

添加到收藏夹

Article Biochemistry & Molecular Biology

Ionic Liquids Effect on the Stability of 17-Electron Cation Product of the Electrochemical Oxidation of Cymantrene

Angel A. J. Torriero

Summary: The oxidative electrochemistry of cymantrene was studied in ionic liquids with varying Lewis base properties. The results showed that the electrochemical responses strongly depended on the nucleophilic properties of the IL anion. Different ILs exhibited different levels of electrochemical reversibility in the oxidation process of cymantrene.

MOLECULES (2022)

添加到收藏夹

Article Spectroscopy

Spectroscopic and DFT study of imidazolium based ionic liquids with broad spectrum antibacterial drug levofloxacin

Md. Abrar Siddiquee, Juhi Saraswat, Mehraj ud din Parray, Prashant Singh, Savita Bargujar, Rajan Patel

Summary: In this study, the interaction between levofloxacin (LVF) and two imidazolium-based ionic liquids (ILs), 1-butly-3-methylimidazolium chloride ([Bmim][Cl]) and 1-decyl-3-methylimidazolium chloride ([Dmim][Cl]), was investigated using spectroscopic techniques and computational methods. The results showed the formation of fluorescent complexes between LVF and ILs. UV-Vis spectroscopy confirmed the complex formation, and cyclic voltammetry results indicated a strong interaction between LVF and ILs. Density functional theory (DFT) calculations were performed to study the structure and molecular orbitals of the ILs, LVF, and their complexes.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY (2023)

添加到收藏夹

Article Chemistry, Multidisciplinary

Not-So-Innocent Anions Determine the Mechanism of Cationic Alkylators

S. Maryamdokht Taimoory, Vincenzo Alessandro Cataldo, Andreas Schaefer, John F. Trant, Ryan Guterman

Summary: In this study, alkylating reagents based on thioimidazolium ionic liquids were synthesized and their impact on the alkylation reaction mechanism was investigated. The research revealed that the anion plays a crucial role in determining the reaction rate and mechanism, with highly nucleophilic anions catalyzing a 2-step process while non-nucleophilic anions favor a 1-step reaction. Additionally, ion-pairs and aggregates in solution were identified, supporting anion-induced control over the reaction rate and mechanism.

CHEMISTRY-A EUROPEAN JOURNAL (2021)

添加到收藏夹

Article Engineering, Environmental

Green arginine capped Hafnium oxide nanoparticles, a computationally designed framework, for electrochemical sensing of mercury (II) ion

Mehar Singh, Abhinav Kapur, Moondeep Chauhan, Gurpreet Kaur, Ajeet Kaushik, Ganga Ram Chaudhary

Summary: Novel and green arginine-capped hafnium oxide nanoparticles (L-Arg@HfO2 NPs) were developed for selective electrochemical sensing of mercuric ions (Hg2+). The L-Arg@HfO2 NPs exhibited spherical morphology and biocompatibility, providing selectivity for Hg2+ sensing. The sensor responded linearly to Hg2+ ions in the concentration ranging from 2 to 140 μM with a low detection limit of 152.58 nM, and showed reproducibility, stability, reusability, and selectivity towards Hg2+ in real water samples.

CHEMICAL ENGINEERING JOURNAL (2023)

添加到收藏夹

Article Electrochemistry

Voltammetry of Several Natural and Synthetic Opioids at a Polarized Ionic Liquid Membrane

Jan Langmaier, Vitezslav Maier, Zdenek Samec

Summary: The study investigates the transfer of various opioids across an interface between water and an ionic liquid membrane using cyclic voltammetry, providing insights into their partition coefficients and standard Gibbs energy of ion transfer. The correlation between neutral and protonated opioids suggests a common basis related to solvation energies in different phases, with solvophobic interactions playing a key role.

CHEMELECTROCHEM (2021)

添加到收藏夹

Article Engineering, Chemical

Understanding the catalytic behavior of ionic liquids in tetralin alkylation with α-olefins through experiment and COSMO-RS model

Chen Chen, Xudong Zhang, Qiong Tang, Mingxing Tang, Xuekuan Li, Lei Liu, Jinxiang Dong

Summary: The use of coal-based feedstocks in chemical production is important for the high value utilization of coal and reducing petroleum consumption. Alkyltetralins similar to naphthenic oil were successfully synthesized through alkylating tetralin with various olefins. Ionic liquids (ILs) were applied as catalysts, with Et3NHCl-AlCl3 IL exhibiting high catalytic activity at mild temperatures. The selectivity of multi-alkyltetralins surpassed 70% with tetralin conversion exceeding 99%. The catalyst remained robust even in the presence of trace water and oxygenated chemicals.

CHEMICAL ENGINEERING SCIENCE (2023)

添加到收藏夹

Article Biochemistry & Molecular Biology

Expanding the Chemical Space of Benzimidazole Dicationic Ionic Liquids

Andrea Mezzetta, Luca Guglielmero, Angelica Mero, Giorgio Tofani, Felicia D'Andrea, Christian Silvio Pomelli, Lorenzo Guazzelli

Summary: The thermal and electrical properties of benzimidazole dicationic ionic liquids (BDILs) were investigated, revealing that bistriflimide BDILs are more stable than bromide BDILs. The spacer length plays a role in thermal behavior, and dicationic ILs offer more structural diversity and ease of property tuning compared to monocationic ILs.

MOLECULES (2021)

添加到收藏夹

Article Polymer Science

How Do Ionic Liquids Fold Ionenes? Computational and Experimental Analysis of Imidazolium Polymers Based on Ether and Alkyl Chain Variations Dissolved in an Ionic Liquid

Praveenkumar Sappidi, Xiaoyang Liu, Kathryn E. O'Harra, Jason E. Bara, C. Heath Turner

Summary: Molecular dynamics simulations and complementary experiments were used to study the inter- and intramolecular structures and conformational properties of imidazolium ionenes in an ionic liquid. Different chemical and structural variations of the polymers were found to affect their internal interactions and interactions with surrounding molecules, resulting in changes in chain flexibility and alignment of imidazolium groups. The concentration of alkyl groups and polymer architecture also play important roles in determining the polymer structure and properties.

MACROMOLECULES (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

A Systematic Study on the Redox Potentials of Phenazine-Derivatives in Aqueous Media: A Combined Computational and Experimental Work

Carlos de la Cruz, Roberto Sanz, Anisley Suarez, Edgar Ventosa, Rebeca Marcilla, Andreas Mavrandonakis

Summary: This article utilizes density functional theory calculations to screen around 100 phenazine derivatives in aqueous media and identifies crucial positions for functionalization with multiple hydroxy groups to design new anolytes. The combination of experimental and computational methods guides the development of a new molecule with a record low reversible redox potential as a potential anolyte for aqueous redox flow batteries.

CHEMSUSCHEM (2023)

添加到收藏夹

Article Chemistry, Analytical

Ionic liquid/poly(ionic liquid) membranes as non-flowing, conductive materials for electrochemical gas sensing

Simon Doblinger, Catherine E. Hay, Liliana C. Tome, David Mecerreyes, Debbie S. Silvester

Summary: This research investigates the use of mixed membranes composed of conductive poly(IL)s and ionic liquids in amperometric gas sensors. The study finds that the membranes exhibit high robustness and non-flowing properties, while also showing excellent and reproducible analytical responses towards gases. The results demonstrate the potential of these membranes as designer gas sensor materials for robust sensor devices.

ANALYTICA CHIMICA ACTA (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Conductivity and Redox Potentials of Ionic Liquid Trihalogen Monoanions [X3]-, [XY2]-, and [BrF4]- (X=Cl, Br, I and Y=Cl, Br)

Tyler A. Gully, Patrick Vossnacker, Jonas R. Schmid, Helmut Beckers, Sebastian Riedel

Summary: The study found that lighter IL trihalogen monoanions have higher conductivities, while the addition of other substances significantly reduces conductivity. The oxidation potential of polyhalogen monoanions develops in the order of [Cl-3](-) > [BrCl2](-) > [Br-3](-) > [IBr2](-) > [ICl2](-) > [I-3](-).

CHEMISTRYOPEN (2021)

添加到收藏夹

Article Engineering, Chemical

Solubility of Isobutane in H2SO4 by the COSMO-RS Model and Mechanisms for Additives to Enhance the H2SO4 Performance

Yichuan Wang, Yangyang Xin, Fei Gao, Siqi Jiang, Mengchen Li, Shuai Zhang, Yufeng Hu, Zhichang Liu

Summary: A method for predicting isobutane solubility in H2SO4 was developed using the COSMO-RS model, and applied to predict isobutane solubilities and isobutane-olefin ratios (I/O). The study found that additives enhance C8 selectivity by increasing the I/O value rather than isobutane solubility, challenging the common belief.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2022)

添加到收藏夹

Article Chemistry, Organic

Metal-Free Hydroxymethylation of Indole Derivatives with Formic Acid as an Alternative Way to Indirect Utilization of CO2

Wen-Bin Huang, Meng Yang, Liang-Nian He

Summary: In this study, a selective method for the synthesis of N-alkylated indole products was developed via hydroxymethylation using formic acid. This metal-free process under mild conditions, using an organic base as the catalyst, represents an alternative strategy for the indirect utilization of CO2. This method has significant practical value.

JOURNAL OF ORGANIC CHEMISTRY (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Synthesis and Characterization of O-Alkylated Amidiunn Ionic Liquids

Zheng Jian Chen, Hong Wei Xi, Kok Hwa Lim, Jong-Min Lee

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2015)

添加到收藏夹

Article Chemistry, Inorganic & Nuclear

Delocalized Hypervalent Silyl Radical Supported by Amidinate and Imino Substituents

Shu-Hua Zhang, Emma Carter, Hong-Wei Xo, Yongxin Li, Kok Hwa Lim, Cheuk-Wai So

INORGANIC CHEMISTRY (2017)

添加到收藏夹

Article Nanoscience & Nanotechnology

A smart upconversion-based light-triggered polymer for synergetic chemo-photodynamic therapy and dual-modal MR/UCL imaging

Bin Du, Shuping Han, Feifei Zhao, Kok Hwa Lim, Hongwei Xi, Xiangjie Su, Hanchun Yao, Jie Zhou

NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE (2016)

添加到收藏夹

Article Materials Science, Multidisciplinary

Controlling armchair and zigzag edges in oxidative cutting of graphene

Mahasin Alam Sk, Lin Huang, Peng Chen, Kok Hwa Lim

JOURNAL OF MATERIALS CHEMISTRY C (2016)

添加到收藏夹

Article Energy & Fuels

Predicting cetane numbers of hydrocarbons and oxygenates from highly accessible descriptors by using artificial neural networks

Zhen Guo, Kok Hwa Lim, May Chen, Beng Joo Reginald Thio, Bernard Liat Wen Loo

FUEL (2017)

添加到收藏夹

Article Chemistry, Applied

Theoretical design and exploration of novel high energy density materials based on silicon

Hong-Wei Xi, Ho Wee Goh, Jason Zhichuan Xu, Peter Peng Foo Lee, Kok Hwa Lim

JOURNAL OF ENERGETIC MATERIALS (2018)

添加到收藏夹

Article Chemistry, Inorganic & Nuclear

A Bis(germyliumylidene)silver(I) Complex Dication

Celestine Seow, Muhammad Luthfi Bin Ismail, Hong-Wei Xi, Yongxin Li, Kok Hwa Lim, Cheuk-Wai So

ORGANOMETALLICS (2018)

添加到收藏夹

Review Chemistry, Applied

A review on the electrochemical reduction of CO2 in fuel cells, metal electrodes and molecular catalysts

Rern Jern Lim, Mingshi Xie, Mahasin Alam Sk, Jong-Min Lee, Adrian Fisher, Xin Wang, Kok Hwa Lim

CATALYSIS TODAY (2014)

添加到收藏夹

Article Biochemistry & Molecular Biology

Theoretical studies on the structures, material properties, and IR spectra of polymorphs of 3,4-bis(1H-5-tetrazolyl)furoxan

Hong-Wei Xi, Siti Zubaidah Binte Mohammad Mazian, Hay Yee Serene Chan, Huey Hoon Hng, Ho Wee Goh, Kok Hwa Lim

JOURNAL OF MOLECULAR MODELING (2019)

添加到收藏夹

Article Chemistry, Inorganic & Nuclear

The disappearance of the stable slightly-bent isomer of germasilaallenes and the appearance of its cyclic isomer

Hong-Wei Xi, Sultana Bedoura, Mahasin S. K. Alam, Kok Hwa Lim

POLYHEDRON (2020)

添加到收藏夹

Article Engineering, Chemical

University engagement to improve safety education

Kok Hwa Lim, Chong Seng Teng

Summary: With the implementation of the major hazards installations regulatory framework in Singapore, the chemical and pharmaceutical industry has been focusing on building up capabilities for demonstrating risk reduction to regulators. Through collaboration with Pfizer, a Specialist Certificate in Process Safety was established to harmonize industry training and develop in-house process safety practitioners. The training approach integrated hands-on learning and was further incorporated into pharmaceutical engineering modules to ensure new graduates have essential process safety skills.

PROCESS SAFETY PROGRESS (2021)

添加到收藏夹

Article Chemistry, Physical

DFT/TDDFT Investigation on donor-acceptor triazole-based copolymers for organic photovoltaics

Sultana Bedoura, Hong-Wei Xi, Ho Wee Goh, Kok Hwa Lim

Summary: Using density functional theory (DFT) method, the study investigated the properties of triazole-based donor-acceptor (DA) pi-conjugated molecules, revealing that certain acceptors with specific substituents exhibit stronger conjugation and electron delocalization, leading to lower LUMO energies. The introduction of heteroatoms such as S and Se in the acceptor structure significantly reduces the bandgap. Additionally, polymers composed of Y4 donor and X1 acceptor fragments show promising potential for heterojunction organic solar cell applications.

JOURNAL OF MOLECULAR STRUCTURE (2022)

添加到收藏夹

Article Chemistry, Inorganic & Nuclear

Mono-, di-, tri- and tetra-silacyclobutenes: Strain energy, hyperconjugation and ring-opening reaction

Hong-Wei Xi, Sultana Bedoura, Mahasin Alam Sk, Kok Hwa Lim

Summary: The ring strain, pi-sigma hyperconjugation, and ring-opening reactions of silicon-substituted cyclobutenes were studied systematically. The strength of the ring strain was characterized by the deviation of bond angles and bond lengths, while pi-sigma hyperconjugation was found to relax the ring strain. The thermal ring opening reactions were predicted to follow a symmetry-allowed mechanism, with the contribution of bond energy determining whether the process is endothermic or exothermic.

POLYHEDRON (2022)

添加到收藏夹

Article Engineering, Chemical

Application of process safety management principles to laboratory safety management

Muhammad Rithaudin Bin Yep Abu, Kok Hwa Lim

Summary: Managing teaching and research laboratories at universities is becoming increasingly complex, especially when they serve as hybrid laboratories that serve both functions simultaneously. To ensure safety and security, selected elements of process safety management were adopted to establish a strong approach to laboratory safety management. These elements were customized to meet the changing requirements of research activities and laboratory users, including undergraduates and researchers. The focus was on both user and technical aspects, covering employee participation and change management. The main objective was to cultivate and maintain a laboratory safety culture that safeguards all users and minimizes damage to assets.

PROCESS SAFETY PROGRESS (2023)

添加到收藏夹

Article Chemistry, Inorganic & Nuclear

Reactivity of an amidinato silylene and germylene toward germanium(II), tin(II) and lead(II) halides

Yu-Liang Shan, Bi-Xiang Leong, Hong-Wei Xi, Rakesh Ganguly, Yongxin Li, Kok Hwa Lim, Cheuk-Wai So

DALTON TRANSACTIONS (2017)

添加到收藏夹

暂无数据

© Peeref 2019-2024. All rights reserved.