Results 51 to 60 of about 38,574 (278)

Non‐Bonded Interaction Driven Morphology Evolution of CuMOF@MXene Energetic Composites: Synergistic Optimization of Thermal Stability and Combustion Performance

Advanced Science, EarlyView.
This work presents a strategy for preparing energetic composites based on energetic metal‐organic frameworks and MXene. This approach leverages the interfacial “Ti─O···Cu” non‐bonded interactions to achieve energetic composites with diverse morphologies and performance.
Ke‐Juan Meng, Xinwen Ma, Kunyu Xiong, Xiaoxia Ma, Iftikhar Hussain, Momang Tian, Kaili Zhang   +6 more
wiley   +1 more source

Unveiling an Alternative Mechanism for Lewis Basic Selenium as a C─H Hydrogen Bond Catalyst and Its Application in the Halogenation of Arenes

Angewandte Chemie, EarlyView.
This work demonstrates an unconventional mechanism in Lewis basic selenium‐catalyzed electrophilic halogenation, where in situ oxidation of selenourea by the halogen source generates hypervalent Se‐imidazolium species. These intermediates function as hydrogen‐bond catalysts to activate N‐haloamide reagents, enabling efficient and mild halogenation of ...
Jingxian Huang, Qingyu Zhang, Haihui Wang, Junjie Yang, Ying‐Lung Steve Tse, Xiaojian Jiang, Ying‐Yeung Yeung   +6 more
wiley   +2 more sources

Microwave assisted pyrazole derivative synthesis [PDF]

, 2007
In the past few decades, many significant advances in organic chemistry, such as the novel synthetic reagents and methods, as well as the advent of an array of analytical apparatus and techniques, have made the organic synthesis more dynamic and ...
Dash, Binay Kumar
core  

Pyrazoles and imidazoles as ligands. XV. preparation, spectra and magnetic properties of di-μ-hydroxo-bis- [di(2-methylimidazole)copper(II)] diperchlorate dihydrate [PDF]

, 1971
The preparation of the title compound is reported from Cu(ClO4)2, 2-methylimidazole and a small amount of water in ethanol solution. The compound consists of dimeric units [(2MIz)2Cu(OH)]22+, to which two perchlorate anions and two molecules of water are
Knetsch, D., Nieuwenhuijse, B., Reedijk, J.   +2 more
core   +2 more sources

Mixed Lineage Kinase Domain‐Like Protein (MLKL): From Mechanisms to Therapeutic Opportunities

Advanced Science, EarlyView.
The mixed lineage kinase domain‐like protein (MLKL) acts as the executioner in the necroptosis pathway, transitioning from an inactive to active state through phosphorylation, oligomerization, membrane recruitment, and membrane insertion, ultimately forming membrane hotpots.
Lijuan Xu, Chunlin Zhuang
wiley   +1 more source

Fe‐Triazolate Metal–Organic Frameworks as Water Oxidation Catalysts with Dual Photoanode Functionality

Angewandte Chemie, EarlyView.
Fe‐triazolate (Fe(ta)2) and its metal‐substituted derivatives (Fe‐Metal(ta)2) MOFs are reported as dual‐function materials for light absorption and water oxidation catalysis in acidic media, achieving a highest photocurrent of 2 × 10−3 A cm−2 at bias + 1.4 V vs. Ag/AgCl.
Jully Patel, Naduvile Purayil Dileep, Vladimir Bondar, Priya Gopal, Anton V. Sinitskiy, Sergei Savikhin, Yulia Pushkar   +6 more
wiley   +2 more sources

Absorbate-Induced Piezochromism in a Porous Molecular Crystal [PDF]

, 2015
Atmospherically stable porous frameworks and materials are interesting for heterogeneous solid–gas applications. One motivation is the direct and selective uptake of pollutant/hazardous gases, where the material produces a measurable response in the ...
Butler, KT, Chen, T-H, Cruickshank, DL, Hendon, CH, Kaveevivitchai, W, Miljanic, OS, Popov, I, Walsh, A, Wilson, CC, Wittering, KE   +9 more
core   +3 more sources

An Elegant Method of One‐Pot Ligation‐Desulfurization for High‐Yielding Chemical Protein Synthesis

Advanced Science, EarlyView.
A one‐pot native chemical ligation and desulfurization method has been developed for efficient chemical protein synthesis. This unique approach uses bromoacetamide and N‐acetyl cysteine to selectively quench arylthiol post native chemical ligation.
Vishal Malik, Abhisek Kar, Anandh Muthiah Venkatachalam, Kalyaneswar Mandal   +3 more
wiley   +1 more source

Umpolung Activation of Bicyclobutanes via N‐Heterocyclic Carbene Catalysis

Angewandte Chemie, EarlyView.
NHC‐catalyzed umpolung of bicyclo[1.1.0]butane (BCB) aldehydes enables nucleophilic cycloaddition with carbonyls and imines to form bicyclic lactones and lactams. The resulting oxa‐ and aza‐bicyclo[3.1.1]heptane products can be further transformed into valuable rigid 3D scaffolds, offering a simple and versatile approach to access new chemical space ...
Yu‐Che Chang, Renyu Guo, Thomas Fessard, Quentin Lefebvre, Christophe Salome, M. Kevin Brown   +5 more
wiley   +2 more sources

Simple and Efficient Protocol for the Synthesis of Novel Dihydro-1H-Pyrano[2,3-C]Pyrazol-6-Ones via a one-Pot Four-Component Reaction [PDF]

, 2012
Ba(OH)2 catalyzed simple and efficient one-pot four-component reaction of Meldrums acid, ethyl acetoacetate, hydrazine hydrate, and aromatic aldehydes to give 3-methyl-4-aryl-4,5-dihydro-1H-pyrano[2,3-c]pyrazol-6-ones in refluxing water is reported.
Pasha, M.A., Sadeq Hamood Saleh Azzam, .
core   +1 more source