Results 61 to 70 of about 14,155 (281)

Catalytic Enantioselective Multicomponent Reactions of Sulfoxonium Ylides Enabled by a Formal Rearrangement—A Versatile Entry to Enantioenriched α‐Sulfanyl Carbonyl Compounds

Angewandte Chemie, EarlyView.
A catalytic network embedding a formal rearrangement enables the first catalytic enantioselective multicomponent reaction (MCR) of sulfur ylides. In the presence of a bulky chiral phosphoric acid, the reaction combines sulfoxonium ylides, aldehydes and thiols, and affords synthetically versatile β‐hydroxy‐α‐sulfanyl carbonyl compounds in ...
Nicolò Santarelli, Pietro Pecchini, Nunzio Matera, Andrea Pellegrini, Riccardo Fabbri, Irati Celada Cubero, Leire Navarro Rubio, Cristina Di Pietro, Andrea Mazzanti, Mariafrancesca Fochi, Luca Bernardi   +10 more
wiley   +2 more sources

Decoupling Intrinsic Molecular Efficacy From Platform Effects: An Interpretable Machine Learning Framework for Unbiased Perovskite Passivator Discovery

Advanced Science, EarlyView.
This study establishes an interpretable machine learning framework that disentangles the intrinsic molecular efficacy of passivators from experimental platform effects—enabling unbiased, high‐throughput discovery of effective perovskite surface modifiers.
Jing Zhang, Ziyuan Li, Shan Gao, Zhen Zhu, Jing Wang, Xiangmei Duan   +5 more
wiley   +1 more source

Amidase‐Catalyzed Desorption of CO2 Captured in Aqueous Monoethanolamine (MEA) Solutions

Angewandte Chemie, EarlyView.
CO2 is captured in aqueous monoethanolamine (MEA) sorbents as carbamate and bicarbonate/carbonate. The subsequent desorption for storage or utilization is energy‐intensive, and this is a major impediment to industrial carbon dioxide removal (CDR) processes. The desorption process can be promoted by enzymes that catalyze the dissociation of distinct CO2‐
Yang Yang, Onur Kırtel, Silke Flindt Badino, Lea Helena Strother, Laura Rotilio, Jerik Mathew Valera Lauridsen, Stefanie Neun, Jens Preben Morth, Ji‐Woong Lee, Ditte Hededam Welner, Peter Westh   +10 more
wiley   +2 more sources

Surface coverage and corrosion inhibition effect of Rosmarinus officinalis and zinc oxide on the electrochemical performance of low carbon steel in dilute acid solutions

Results in Physics, 2018
Electrochemical analysis of the corrosion inhibition and surface protection properties of the combined admixture of Rosmarinus officinalis and zinc oxide on low carbon steel in 1 M HCl and H2SO4 solution was studied by potentiodynamic polarization, open ...
Roland Tolulope Loto
doaj   +1 more source

Metallic magnesium: An efficient catalyst toward N-aryl and N-alkyl substituted amides directly from aliphatic carboxylic acids

, 2015
An efficient and inexpensive procedure for direct conversion of aliphatic carboxylic acids into amides has been developed using anilines or aliphatic amines and Mg(0) as catalyst in toluene.
Yıldırım, Ayhan
core   +1 more source

Hydrothermal Humification of Biomass for Circular Carbon Management in Sustainable Agro‐Ecosystems

Advanced Science, EarlyView.
This article provides a comprehensive overview of biomass hydrothermal humification for building sustainable agro‐ecosystems. It examines the chemical transformation mechanisms and the functional benefits of the produced humic acids in soil remediation.
Ziyun Liu, Zonglu Yao, Yuanhui Zhang, Huiyan Zhang, Lixin Zhao   +4 more
wiley   +1 more source

A Lewis acid-promoted Pinner reaction

Beilstein Journal of Organic Chemistry, 2013
Carbonitriles and alcohols react in a Lewis acid-promoted Pinner reaction to carboxylic esters. Best results are obtained with two equivalents of trimethylsilyl triflate as Lewis acid.
Dominik Pfaff, Gregor Nemecek, Joachim Podlech   +2 more
doaj   +1 more source

Mechanistic Understanding of Protein–MOF Integration Through Surfactant‐Driven Interfacial Design

Advanced Science, EarlyView.
This study reveals how surfactant‐driven interfacial design governs the assembly and stability of protein@MOF composites. Using lipid‐based nonionic surfactants, we modulate protein–MOF interactions to improve encapsulation efficiency, MOF crystallization, and catalytic performance.
Ehsan Rashidniyaghi, Mohammad Khavani, Carlie Coerver, Ruibin Liang, Raheleh Ravanfar   +4 more
wiley   +1 more source

Potassium‐Ligand Cooperation Facilitated Chemical Bond Activation and Catalytic Hydrogenation

Angewandte Chemie, EarlyView.
A new strategy for alkali metal‐mediated catalysis based on metal–ligand cooperation (MLC) is presented. Potassium pincer complexes exhibit remarkable reactivity toward a range of molecules via an unprecedented potassium–ligand cooperative mechanism. This reactivity enables potassium‐catalyzed hydrogenation, providing efficient reduction of ketones and
Yaoyu Liang, Irena Efremenko, Thiyagarajan Subramanian, Amit Kumar, Liat Avram, Yael Diskin‐Posner, David Milstein   +6 more
wiley   +2 more sources

Catalytic Desaturation of Aliphatic Amides and Imides Enabled by Excited-State Base-Metal Catalysis

, 2022
Herein, we report a photoexcited base-metal-catalyzed selective desaturation of aliphatic amides and imides. The reaction is catalyzed by a base-metal cobalt complex under visible-light irradiation.
Phong Dam, Jabor Rabeah, Rabeah, Jabor, Wang, Chenyang, Osama El-Sepelgy, Luis Miguel Azofra, Steinfeldt, Norbert, Norbert Steinfeldt, Chenyang Wang, Azofra Mesa, Luis, Michael Sebek, El-Sepelgy, Osama, Dam, Phong, Sebek, Michael, Azofra Mesa, Luis Miguel   +14 more
core   +2 more sources