Results 101 to 110 of about 9,953 (212)

Divergent Access to Fluorinated Pharmacons From Ethyl Trifluoropyruvate

Advanced Synthesis &Catalysis, Volume 368, Issue 7, 1 April 2026.
Fluoro(oxo) functional group diversification is traditionally accomplished through either specialized reagents or nucleophilic trifluoromethylation. Herein is disclosed the use of commercially available building blocks for the synthesis of trifluoromethyl(hydroxy) esters.
Rifat N. Nabi, Ryan C. Kashatus, Kaden M. Joseph, Salina Zhang, Daniel K. Kim   +4 more
wiley   +1 more source

A Combined Experimental and Theoretical Study of the Ammonium Bifluoride Catalyzed Regioselective Synthesis of Quinoxalines and Pyrido[2,3-b]pyrazines

, 2015
International audienceAmmonium bifluoride was efficiently used (at a 0.5 mol % loading) to catalyze the cyclocondensation between 1,2-arylenediamines and 1,2-dicarbonyl compounds at room temperature in methanol-water, affording quinoxalines and pyrido[2 ...
Chevallier, Floris, Domingo, Luis R, Dorcet, Vincent, Lassagne, Frédéric, Mongin, Florence, Roisnel, Thierry   +5 more
core   +3 more sources

Redox Switchable Thianthrene Cavitands [PDF]

, 2016
A redox activated vase-to-kite conformational change is reported for a new resorcinarene-based cavitand appended with four quinoxaline-fused thianthrene units.
Bertani, Federico, Dalcanale, Enrico, Ong, Wen Jie, Swager, Timothy M   +3 more
core   +1 more source

Substitutive Approach Toward Heteroaromatic Amino Alcohols Accessed Through Dioxolanyl Radical Linchpin

Advanced Synthesis &Catalysis, Volume 368, Issue 7, 1 April 2026.
A dioxolanyl linchpin has been used to synthesize aryl ethanolamines from readily available aryl bromide and amine starting materials using a metallaphotoredox/substitution telescoped sequence. This combinatorial approach allows for a wide synthetic scope of both heteroarenes and cyclic amines. Aryl ethanolamines are an important functional group found
Justin J. Chang, Munnu Kumar, Ryan C. Kashatus, Dylan J. Tomaselli, Daniel K. Kim   +4 more
wiley   +1 more source

Universal Antibody‐Engineered Lipid Nanoparticles Potentiate Chemo‐Immunotherapy Against Triple‐Negative Breast Cancer by Reprogramming Tumor Cell Metabolism

Advanced Science, Volume 13, Issue 19, 2 April 2026.
A universal ROR1 antibody‐engineered lipid nanoparticle (LNP) is constructed by sequential drug encapsulation and antibody conjugation. The LNP not only enables enhanced chemotherapeutic efficiency by targeting drug delivery and precise localization of deep‐seated tumors through NIR‐II fluorescence imaging, but also remodels immunosuppressive TME ...
Yeneng Dai, Jiaqi Wang, Yu Liu, Guanda Jiao, Yuheng Gu, Yang Liu, Shengyu Fu, Xing Fan, Jialin Li, Ziang Guo, Kam Tong Leung, Lipeng Zhu, Qi Zhao   +12 more
wiley   +1 more source

Nanoimprinted DMD Electrodes Enabling Bidirectional Viewing OLEDs With Quasi Lambertian Emission

Advanced Science, Volume 13, Issue 22, 17 April 2026.
We present a dual‐approach strategy for high‐performance bidirectional‐viewing OLEDs, combining enhanced cavity resonance with a nanoimprinted dielectric/metal/dielectric (DMD) electrode. This bidirectional viewing OLED presents an 89.7% enhanced electrode transmittance, a balanced bidirectional emission ratio with 67.3% total brightness increase, as ...
Ningning Song, Ningning Liang, Xinghao Guo, Ruixiang Chen, Xia Xin, Yiming Chen, Ruiqi Tian, Tianrui Zhai   +7 more
wiley   +1 more source

In Vitro Antimicrobial Activity of New 3-Substituted 5H-(1,2,4)Triazolo(3\',4\':2,3) (1,3,4)Thiadiazino(5,6-B)Quinoxaline Derivatives

Medical Laboratory Journal, 2020
Background and objectives: Antimicrobial resistance is a serious threat to global public health. The overuse and misuse of antibiotics are the most important contributing factors to development of antibiotic resistance.
MARYAM KOUHKAN, Miri Mahmoody, Jabbar Khalafy, Sima Pourali, Nasser Samadi   +4 more
doaj  

Microwave-assisted synthesis, structural activity relationship and biological activity of some new quinoxaline Schiff base derivatives as highly potent spirochete bactericidal agents

Beni-Suef University Journal of Basic and Applied Sciences, 2017
The main aim of this work was to synthesise a new (E)-3-(4-or3-Aminophenylimino) quinoxaline-2(3H)-one oxime Schiff base derivatives and evaluate the anti-leptospiral activity against Leptospira icterohaemorrhagiae.
Chandravadivelu Gopi, Vedula Girija Sastry, Magharla Dasaratha Dhanaraju   +2 more
doaj   +1 more source

Selective Charge Extraction Allows Fast Photomultiplication and Imaging in Rigid and Ultra‐Flexible SWIR Organic Photodiodes

Advanced Energy Materials, Volume 16, Issue 16, 22 April 2026.
SWIR donor polymer TQ‐3T allows photomultiplication in OPD in 1:1 ratio with NFA Y6, achieving EQEs > 1100% at ‐10 V. Microseconds response times are retained, amongst the lowest for photomultiplication. As proof of concept, we demonstrate ultrathin and flexible PM‐OPDs based on our TQ‐3T:Y6 as a flexible pulse oximeter as well as a conformable image ...
Matilde Brunetta, Zhuoran Qiao, Davide Nodari, Kosei Sasaki, Francesco Furlan, Martina Rimmele, Hongki Kim, Hongting Chen, Yusaku Tagawa, Adam Marsh, Rushil Vasant, Sang Do, Xabier Rodríguez‐Martínez, Anirudh Sharma, Christos L. Chochos, Jaime Martin, Martin Heeney, Koen Vandewal, Derya Baran, Thuc‐Quyen Nguyen, Bob C. Schroeder, Takao Someya, Tomoyuki Yokota, Nicola Gasparini   +23 more
wiley   +1 more source

Recent Advances in Carbonyl–Olefin and Carbonyl–Alkyne Metathesis Reactions

ChemistryEurope, Volume 4, Issue 4, April 2026.
Carbonyl–olefin and carbonyl–alkyne metathesis enable atom‐economic C–C bond formation beyond classical olefin metathesis. This review highlights recent advances in photochemical, Lewis‐acid, Brønsted‐acid, and organocatalytic strategies, mechanistic insights, and synthetic applications, showcasing carbonyl metathesis as a versatile platform for modern
Komal Kalonia, Ramees Komath, Martin Breugst   +2 more
wiley   +1 more source