Results 121 to 130 of about 239,878 (262)

Synthesis of Oxadiazol-5-imines via the Cyclizative Capture ofin SituGenerated Cyanamide Ions and Nitrile Oxides

, 2016
An unprecedented intermolecular cyclizative capture of the cyanamide anion and several nitrile oxides enables the synthesis of oxadiazol-5 ...
Moses, J. E., Bhat, SV, Bhat, S. V., Robinson, D, Moses, JE, Sharma, P, Sharma, P., Robinson, D.   +7 more
core   +1 more source

Patient‐Derived Fibroblasts as a Clinically Relevant Model of Kearns–Sayre Syndrome

Annals of Neurology, EarlyView.
Objective Kearns–Sayre syndrome (KSS) is characterized by single large‐scale mitochondrial DNA deletions and by severe early‐onset clinical manifestations with neurological involvement. Reliable disease models, as well as validated biomarkers or effective treatments, are lacking.
Laura Valls‐Roca, Adrià Vilaseca‐Capel, Judith Cantó‐Santos, Ester Tobías, Félix Andújar‐Sánchez, Laia Farré‐Tarrats, Frederic Tort, Carles Rentero, Carlos Enrich, Virginia López, Juan R. Tejedor, Anna Esteve‐Codina, Cristina Núñez de Arenas, Pedro J. Moreno‐Lozano, José C. Milisenda, Mar O'Callaghan, Teresa García‐Silva, Montserrat Morales‐Conejo, Mario F. Fraga, Rafael Artuch, Miguel Á. Martín, José M. Cuezva, Ana Matas, Glòria Garrabou, Mariona Guitart‐Mampel   +24 more
wiley   +1 more source

Direct Access to Chiral Piperidines by Enantioselective HAT‐Initiated C(sp3)─H Oxidation

Angewandte Chemie, EarlyView.
The direct desymmetrization of piperidines is achieved through manganese‐catalyzed enantioselective α‐C(sp3)─H oxidation with hydrogen peroxide, affording versatile chiral N,O‐acetals in good yields and with high enantio‐ and diastereoselectivity. These intermediates provide access to diverse functionalized piperidines with retention of chirality ...
Sethuraman Muthuramalingam, Josep M. Luis, Arnau Call, Quentin Lefebvre, Matthew S. Sigman, Miquel Costas   +5 more
wiley   +2 more sources

1,3‐Dipolar Cycloaddition of Nitroalkanes as a Tool of DOS/LOS‐Like Strategy for the Synthesis of Isoxazoles and Isoxazolines

ChemistryEurope
An efficient and common strategy for the generation of pharmaceutically relevant functionalized molecules based on the diversity‐ and lead‐oriented synthesis (DOS/LOS)‐like concepts is presented. The approach is implemented for the case of functionalized
Bohdan A. Chalyk, Kostiantyn O. Halos, Anastasiia Grynyova, Bohdan S. Sosunovych, Bohdan V. Vashchenko, Oleksandr Zginnyk, Anna Beshtynarska, Nataliia Shliakhtova, Petro Borysko, Angelina V. Biitseva, Konstantin S. Gavrilenko, Dmytro M. Volochnyuk, Oleksandr O. Grygorenko   +12 more
doaj   +1 more source

Intramolecular 1,3-Dipolar Cycloadditions of Norbornadiene-Tethered Nitrile Oxides

, 2016
Efficient routes to the synthesis of norbornadiene-tethered nitrile oxides have been developed, and their intramolecular 1,3-dipolar cycloadditions were studied.
Geoffrey K. Tranmer (2520547), Sean Handerson (3027795), William Tam (640256), Carol Yip (3027792)   +3 more
core   +1 more source

A de‐novo Approach Towards Divergent [3+2π/σ] Photocycloadditions of Nitrones via Assembly‐Controlled Kinetic Electron Transfer Gating

Angewandte Chemie, EarlyView.
A metal‐free photocatalytic platform converts nitrones into 4‐isoxazolines and oxa–aza–bicycloheptanes through divergent [3+2π/σ] cycloadditions. Assembly‐controlled kinetic electron transfer gating dictates substrate activation, enabling selective reactivity beyond thermodynamic expectations.
Nayan Saha, Rajesh Kancherla, Jorge Escorihuela, Shana Chandran, Mrinal K. Bera, Magnus Rueping, Burkhard König   +6 more
wiley   +2 more sources

1,3-Dipolar cycloadditions of acridine with nitrile oxides

ARKIVOC, 2002
Antonino Corsaro, Venerando Pistarà, Antonio Rescifina, Giovanni Romeo, Roberto Romeo, Ugo Chiacchio   +5 more
doaj   +1 more source

Modulating Local Coordination in Single‐Atom Catalysts: From Fundamental Concepts to Emerging Breakthroughs in Electrocatalysis

Angewandte Chemie, EarlyView.
This review summarizes atomic‐level design strategies for single‐atom catalysts, emphasizing modulation of the local coordination environment, active‐site geometry, and metal‐support interactions to optimize catalytic activity and stability in electrocatalytic energy conversion applications.
Ashwani Kumar, Harun Tüysüz
wiley   +2 more sources

A Comprehensive Study of the Synthesis, Spectral Characteristics, Quantum–Chemical Molecular Electron Density Theory, and In Silico Future Perspective of Novel CBr₃-Functionalyzed Nitro-2-Isoxazolines Obtained via (3 + 2) Cycloaddition of (E)-3,3,3-Tribromo-1-Nitroprop-1-ene

Molecules
The search for new heterocyclic compounds with biological potential is one of the current challenges in modern chemistry. Therefore, the comprehensive study of (3 + 2) cycloaddition (32CA) reactions between a series of aryl-substituted nitrile N-oxides ...
Karolina Zawadzińska-Wrochniak, Karolina Kula, Mar Ríos-Gutiérrez, Bartłomiej Gostyński, Tomasz Krawczyk, Radomir Jasiński   +5 more
doaj   +1 more source

A Novel, General Method for the Synthesis of Nitrile Oxides:  Dehydration of O-Silylated Hydroxamic Acids

, 2016
O-Silylated hydroxamic acids serve as stable, readily accessible, crystalline precursors to nitrile oxides when treated with trifluoromethanesulfonic anhydride and triethylamine.
Dieter Muri (2336731), Jeffrey W. Bode (1331538), Erick M. Carreira (1330920)   +2 more
core   +1 more source