Results 101 to 110 of about 38,574 (278)

The Azidofunctionalization of Alkenes

ChemistryEurope, EarlyView.
The azidofunctionalization of alkenes offers a powerful strategy for synthesizing nitrogen‐containing compounds by installing both an azide and a second functional group in one step. This approach, employing photoredox catalysis, transition metals, and radical methods, is efficient, selective, and versatile, with applications in pharmaceuticals and ...
Pierre Palamini, Jerome Waser
wiley   +1 more source

Pyrazoles V: Di‐(1,3,5‐trimethyl‐4‐pyrazorylmethyl) ether, a product of the “chloromethylation” of 1,3,5‐trimethylpyrazole [PDF]

, 1968
C. Wijnberger, Clarisse L. Habraken
openalex   +1 more source

Cationic Phosphino Beryllium Scorpionates and their Reactivity as Lewis Acid–Base Pairs

ChemistryEurope, EarlyView.
Monocationic tris(pyrazolyl)borate beryllium phosphine complexes are synthesized and characterized. These compounds readily react with substrates like CO2, SO2, H2, O2, S8, and Se8. Therefore, the nature of the BeP bond is also analyzed computationally. Herein, the article describes a facile and modular access to cationic beryllium phosphine complexes
Chantsalmaa Berthold, Deniz F. Bekiş, Jan Moritz, Gilles Stebens, Burkhard Butschke, Magnus R. Buchner   +5 more
wiley   +1 more source

Synthesis of Cyclic Sulfilimines and Sulfoximines via Copper‐Mediated C(sp2)–H Sulfanylation of Benzylamines with a Catalytic Transient Directing Group

ChemistryEurope, EarlyView.
Copper‐mediated transient C─H sulfanylation of benzylamines with sulfenamides enables rapid access to thioethers, cyclic sulfilimines, and sulfoximines. Mechanistic investigations using 1H NMR and electron paramagnetic resonance spectroscopy reveal an unprecedented thermally induced homolytic cleavage of the sulfenamide N─S bond, slowly releasing the ...
Tsz‐Kan Ma, Peerawat Saejong, King‐Long Or, Callum S. Begg, James A. Bull   +4 more
wiley   +1 more source

The Fragmentation Reaction of 4-(7-Tropyl)pyrazoles by Bromination [PDF]

, 1964
Toshio Mukai, Haruki Tsuruta
openalex   +1 more source

Metal–Ligand Cooperation of Ir(III) Catalysts Bearing a β‐Protic Pyrazole Chelate in Carboxylative Cyclization of Propargylic Amine with CO2

Chemistry – A European Journal, EarlyView.
Proton‐responsive C–N chelating Cp*Ir complexes derived from 3,5‐diphenylpyrazole catalyze the carboxylative cyclization of propargylic amines with CO2. The cyclic urethane product is smoothly released via protonolysis of the alkenyl‐Ir species with the aid of the β‐protic NH unit on pyrazole.
Yoshihito Kayaki, Yuto Tsuda, Shigeki Kuwata   +2 more
wiley   +1 more source

Oxidant‐Free Amidation of Aldehydes Enabled by Electrophotocatalysis

Chemistry – A European Journal, EarlyView.
An electrophotocatalytic method for C(sp2)–N bond formation via radical‐polar crossover (RPC)‐HAT catalysis is presented. The mild operating conditions enable functionalization of a wide range of compounds, with electricity as the sole oxidant. Abstract Electrophotocatalysis (EPC) is emerging as a powerful tool in organic synthesis, offering unique ...
Dimitris I. Ioannou, Elena Bombonato, Jiri Sanramat, Joost N. H. Reek, Timothy Noël   +4 more
wiley   +1 more source

Syntheses of Pyrazole Derivatives. I

, 1959
Akira Takamizawa, Sadao Hayashi
openalex   +2 more sources

Coordination‐Driven Orthogonal Ligand Pairings through Dual Hydrogen‐Bonding/π‐π Interaction Complementarity

Chemistry – A European Journal, EarlyView.
A series of bidentate ligands for square‐planar Pd(II) complexes were developed, each with hydrogen‐bonding and π‐π‐stacking domains that are complementary to only one other ligand. The bis‐bidentate complexes form orthogonally to one another with high fidelity, but only when both interaction types are exploited in tandem.
Jordan N. Smith, Yolanda Yau, Nina R. Lawson, Rosemary J. Goodwin, Dan Preston   +4 more
wiley   +1 more source

Identification of a New Interesting BAG3 Modulator Able to Disrupt Cancer‐Related Pathways

ChemMedChem, EarlyView.
Compound 2, identified through in‐house screening and derived from SP18, exhibits high affinity for BAG3, as demonstrated by Surface Plasmon Resonance and docking studies. It induces a dose‐dependent proapoptotic response in HeLa cells, evidenced by increased Annexin V/PI staining, underscoring the triazole scaffold as a promising platform for BAG3 ...
Dafne Ruggiero, Eleonora Boccia, Emis Ingenito, Vincenzo Vestuto, Gilda D’Urso, Alessandra Capuano, Agostino Casapullo, Stefania Terracciano, Giuseppe Bifulco, Gianluigi Lauro, Ines Bruno   +10 more
wiley   +1 more source