Results 101 to 110 of about 69,497 (186)

Scope and Limitations of the Use of Methanesulfonic Acid (MSA) as a Green Acid for Global Deprotection in Solid‐Phase Peptide Synthesis

ChemSusChem, EarlyView.
TFA is the only acid used for the cleavage of peptides from the resin. However, this acid belongs to the PFAS family, which is anticipated to face usage restrictions. Herein, the use of MSA, which is a “Natural Green Acid” is proposed to substitute TFA for the global deprotection and cleavage in SPPS.
Giovanni Vivenzio, Sikabwe Noki, Amit Chakraborty, John Lopez, Beatriz G de la Torre, Fernando Albericio   +5 more
wiley   +1 more source

Recycling of Polyurethane via Mechanocatalytic Methanolysis/Hydrolysis

ChemSusChem, EarlyView.
In this study, it is shown that up to 86% of soluble polyol can be recovered from the hydrolysis of polyurethane using a ball milling‐assisted process below 100 °C in the presence of NaOH, a small amount of H2O and a Cu/MgAlOx co‐catalyst. Polyurethane (PU) is the 6th most produced plastic on a global basis, and thus one of the most important targets ...
Bolun Wang, Joel Britschgi, Nguyen Khang Tran, Ivana Jevtovikj, Piyush Ingale, Cansu Mai, Stephan Andreas Schunk, Ferdi Schüth   +7 more
wiley   +1 more source

POTENTIAL FARM-LEVEL IMPACTS OF PROPOSED FQPA IMPLEMENTATION: THE TENNESSEE CASE [PDF]

This research estimates farm-level impacts of a potential ban on organophosphates and carbamates under the FQPA. Insecticide expenditure and first- and fifth-year yield impacts are estimated for five Tennessee representative farms.
Ray, Daryll E., Slinsky, Stephen P., Tiller, Kelly, Torre Ugarte, Daniel de la   +3 more
core   +1 more source

A Roadmap for Biomass‐Driven Development of Sustainable Phase Change Materials

ChemSusChem, EarlyView.
This comprehensive review advances the scientific understanding of sustainability and circularity in phase change material (PCM) fabrication by providing a strategic framework for developing composites from abundant, renewable resources. By screening biomass‐derived PCMs, carbons, and biopolymers, a roadmap is outlined for the development of ...
Alina Brzęczek‐Szafran, Magdalena Gwóźdź, Nicolas Brun, Marcin Wysokowski, Karolina Matuszek   +4 more
wiley   +1 more source

Mechanochemical Activation of NaHCO3: A Solid CO2 Surrogate in Carboxylation Reactions

ChemSusChem, EarlyView.
This study presents sodium bicarbonate (NaHCO3) as a safe, solid source of CO2 for mechanochemical carboxylation reactions. Mechanochemical methods for synthesizing cyclic carbamates and organic carbonates from NaHCO3 are developed. This approach holds significant potential for pharmaceutical applications, highlighting solvent‐minimized synthesis and ...
Francesco Mele, Andrea Aquilini, Ana Maria Constantin, Francesco Pancrazzi, Lara Righi, Andrea Porcheddu, Raimondo Maggi, Daniele Alessandro Cauzzi, Giovanni Maestri, Elena Motti, Luca Capaldo, Nicola Della Ca'   +11 more
wiley   +1 more source

Mechanochemical Generation of Active Pd/BippyPhos Catalyst for Efficient CN Cross‐Coupling in Air

ChemSusChem, EarlyView.
A solvent‐free, solid‐state Buchwald–Hartwig amination is developed using [Pd(π‐cinnamyl)Cl]2 and bulky electron‐rich phosphines. The active catalyst forms without solvent or inert atmosphere, as confirmed by solid‐state 31P nuclear magnetic resonance.
Deniz Karabiyikli, Alexandre Saad, Sokaina Hammoud, Séverine Schneider, Romuald Manca, Jesus Raya, Martine Schmitt, Frédéric Bihel   +7 more
wiley   +1 more source

Benzochalcogenodiazoles, Synthesis, and Applications in Medicinal Chemistry and Photomedicine

European Journal of Organic Chemistry, EarlyView.
Benzochalcogenodiazoles (BXD) including benzoxadiazoles, benzothiadiazoles, and benzoselenadiazoles are initially mainly designed for optoelectronic materials as electron‐deficient cores. Nevertheless, they are now extending their application to biology.
Jean‐Elie Zheng, Xavier Franck, Thibault Gallavardin   +2 more
wiley   +1 more source

Enantioselective Anion‐Binding‐Catalyzed Nucleophilic Addition to 4‐Quinolones

European Journal of Organic Chemistry, EarlyView.
The first organocatalytic enantioselective formal 1,4‐addition to 4‐quinolones has been developed. This method relies on chiral triazole‐based anion‐binding catalysis using enol nucleophiles, complementing previous metal catalytic approaches. Moderate to good yields and enantioselectivities were achieved by in situ silylation and formation of a key ...
Martin Aleksiev, Gaukhar Khassenova, Olga García Mancheño   +2 more
wiley   +1 more source

Insights Into the Enantioseparation of Polyhalogenated 4,4′‐Bipyridines With a Cellulose Tris(3,5‐Dimethylphenylcarbamate)‐Based Chiral Column by Using Supercritical Fluid Chromatography

ELECTROPHORESIS, EarlyView.
ABSTRACT In the last decade, by integrating experimental and computational analyses, it was demonstrated that halogen bond (HaB) may contribute to binding and enantiorecognition mechanisms underlying the HPLC enantioseparation of halogenated chiral analytes by using cellulose tris(3,5‐dimethylphenylcarbamate) (CDMPC)‐based chiral columns and n‐hexane ...
Emmanuelle Lipka, Roberto Dallocchio, Barbara Sechi, Mikheil Rukhaia, Giorgi Jibuti, Bezhan Chankvetadze, Victor Mamane, Paola Peluso   +7 more
wiley   +1 more source

Real‐world effectiveness and tolerability of cenobamate in drug‐resistant epilepsy: A retrospective analysis of the patients included into the Early Access Programs (EAP) in Germany, France, and United Kingdom

Epilepsia Open, EarlyView.
Abstract Objective Investigate real‐world outcomes in drug‐resistant epilepsy (DRE) patients treated with cenobamate as adjunctive treatment to other antiseizure medications (ASMs) within the Early Access Programs (EAP) in Germany, France, and the United Kingdom.
Sylvain Rheims, Bernhard J. Steinhoff, Edouard Hirsch, Felix Rosenow, Arnaud Biraben, Rhys Thomas, Alessandro Lovera, Paola Lipone, Alessandro Comandini, Caroline Benoist, Elena Alvarez Baron, John Paul Leach, Karthinathan Thangavelu, Agnese Cattaneo   +13 more
wiley   +1 more source