Results 161 to 170 of about 62,479 (238)

Advances in the Different Synthetic Routes of Fluorinated Hydrazines

The Chemical Record, EarlyView.
This review highlights the various routes to the preparation of fluorinated hydrazines, thereby promoting the exploration of innovative methods for the synthesis of new N‐fluorinated hydrazines. Their synthesis mainly involves synthetic routes such as organometallic, organocatalytic, and photocatalytic.
Dimitra Kyrko, Benoît Crousse
wiley   +1 more source

Metal‐Free Electrophilic Borylative Cyclizations of Alkynes

The Chemical Record, EarlyView.
Metal‐free borylative cyclizations based on electrophilic alkyne activation by boron Lewis acids provide efficient access to borylated hetero‐ and carbocycles. Early studies using B(C6F5)3 displayed limited scope and application, whereas recent ClBcat‐ and BCl3‐based methods enable mild CB and CC/CX bond formation for the synthesis of cycles ...
Jaime Mateos‐Gil, Marcos Humanes, Manuel A. Fernández‐Rodríguez, Patricia García‐García   +3 more
wiley   +1 more source

Nickel Foam Electrodes—A Versatile, Powerful, and Readily Available Tool in Electro‐Organic Synthesis

The Chemical Record, EarlyView.
Nickel foam—one material, two faces, and several versatile roles depending on electrolytic conditions. For more than 50 years, nickel foam electrodes have served in electrosynthesis as powerful and readily available electrode materials. Due to their inexpensive nature and easy handling, they have been widely employed.
Rok Narobe, Johannes Schneider, Siegfried R. Waldvogel   +2 more
wiley   +1 more source

On Phosphatitanacycles

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
Titanocene phosphinidenes react with terminal alkynes in formal [2 + 2] cycloadditions to give unsaturated [C2PTi] metallcycles. Diphosphene complexes in combination with aryl‐substituted alkynes react similarly to provide metallacyclopentenes. Titanocene‐phosphinidene and diphosphanediide (or diphosphene) complexes Cp2Ti(PMe3)PMesTer and Cp2Ti(P2Ar2) (
Andrey Petrov, Christian Hering‐Junghans   +1 more
wiley   +1 more source

Anionic N‐Heterocyclic Carbene‐Based Silicon Halides with a Four‐Coordinated Silicon Atom

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
Silicon(IV) halides [{(Et3B)anIPr}SiHCl2] (4) and [{(Et3B)anIPr}SiBr3] (5) based on an anionic N‐heterocyclic carbene ligand (i.e., {(Et3B)anIPr} = (Et3B)C=C(H {N(Dipp)}2C, Dipp = 2,6‐iPr2C6H3) are reported. Silicon(IV) halides [{(Et3B)anIPr}SiHCl2] (4) and [{(Et3B)anIPr}SiBr3] (5) based on an anionic N‐heterocyclic carbene (NHC) ligand (i.e., {(Et3B ...
Henric Steffenfauseweh, Dennis Rottschäfer, Yury V. Vishnevskiy, Beate Neumann, Hans‐Georg Stammler, Rajendra S. Ghadwal   +5 more
wiley   +1 more source

Scaffold Dependent Coordination Modes of Chelating PEP‐Type Ligands in Iron(0) Carbonyl Complexes (E = O, S)

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
The reaction of iron pentacarbonyl with various chelating diphosphine ligands containing oxygen or sulfur atoms in their backbone yields complexes that exhibit noteworthy coordination behavior. Depending on the natural bite angle of the ligands and the coordination behavior of the heteroatom, preferences regarding the coordination geometry are verified
Jonas Wohlrab, Philipp Schatz, Matthias Vogt, Robert Langer   +3 more
wiley   +1 more source

Liquid jet capabilities for ultrafast chemistry at the SwissFEL Alvra instrument

Journal of Synchrotron Radiation, EarlyView.
The technical aspects of the Alvra endstation are outlined and its scientific capabilities are demonstrated with commissioning results obtained during the early years of SwissFEL's operation.The Alvra experimental station at the Swiss X‐ray free‐electron laser, SwissFEL, investigates ultrafast dynamics in chemical and biological systems using X‐ray ...
Claudio Cirelli, Emma Victoria Beale, Florian Dworkowski, Victoria Kabanova, Sven Augustin, Gregor Knopp, Chris Milne, Christoph Bostedt, Philip J. M. Johnson, Camila Bacellar   +9 more
wiley   +1 more source

Immobilized CuCl2/TiO2 photocatalysts for the selective oxidation of benzyl alcohol to benzaldehyde

Photochemistry and Photobiology, EarlyView.
The photocatalytic aerobic oxidation of benzyl alcohol to benzaldehyde was investigated using free and alginate‐immobilized CuCl2 and/or TiO2 (P25) catalysts under UV irradiation. Immobilization enabled catalyst recovery and maintained high benzaldehyde selectivity but led to reduced activity due to internal oxygen diffusion limitations, which were ...
Nosaibeh Nosrati‐Ghods, Lidija Čuček, Hamidreza Moradi, Eric van Steen   +3 more
wiley   +1 more source

Nickel‐Catalyzed Enantioconvergent Arylation of Unactivated Cyclic Electrophiles: Asymmetric Synthesis of 3‐Substituted Pyrrolidines

Angewandte Chemie, Volume 138, Issue 20, 11 May 2026.
Metal‐catalyzed enantioconvergent substitutions of unactivated cyclic electrophiles by organometallic nucleophiles have not previously been reported. Herein, a chiral nickel catalyst is described that achieves this objective, coupling 3‐iodopyrrolidine derivatives with arylzinc nucleophiles.
Ting Hei Matthew Wong, Xiaoyu Tong, Gregory C. Fu   +2 more
wiley   +2 more sources

Processability and Crosslink Density: Role of Peptizers in Natural Rubber and Chlorobutyl Rubber

Journal of Applied Polymer Science, Volume 143, Issue 22, June 10, 2026.
This work evaluates how chemical and physical peptizers affect mastication, vulcanization behavior, and network formation in natural rubber and chlorobutyl rubber. Size‐exclusion chromatography, rheometry, DSC, and swelling analyses demonstrate improved processability but reduced crosslink density with peptizer addition.
Amanda F. Baruel, Sérgio L. G. Petroni, Sandra A. C. de Mello, Jorge C. N. Dutra, Silvana N. Cassu   +4 more
wiley   +1 more source