Results 101 to 110 of about 887 (215)

Hofmann Degradation of Asparagine and Glutamine as an Efficient Approach for the Synthesis of Derivatized Lysine Homologs

European Journal of Organic Chemistry, EarlyView.
A practical and scalable route to C1 and C2 lysine homologs has been developed using Hofmann degradation of N‐protected L‐asparagine and L‐glutamine as the key step. These short‐tether scaffolds enable efficient synthesis of diverse Fmoc‐protected noncanonical amino acids (ncAAs) bearing donor, acceptor, redox‐active, and fluorescent residues.
Adelaide R. Mashweu, François J. De Beer, Jolien Bertouille, Steven Ballet, Charlotte Martin, Ulrich Hennecke, Charlene Marais, Vladimir A. Azov   +7 more
wiley   +1 more source

Photochemical Decatungstate‐Catalyzed Hydroacylation of Maleimides

European Journal of Organic Chemistry, EarlyView.
A photocatalytic protocol to access substituted succinimides via tetra‐n‐butylammonium decatungstate photocatalysis is reported. This direct radical‐driven hydroacylation of a variety of N‐substituted maleimides shows tolerance to various aldehydes (or alkanes), affording differentially substituted succinimides in high yields. Succinimides constitute a
Manos V. G. Lantzanakis, Naya A. Stini, Christoforos G. Kokotos   +2 more
wiley   +1 more source

Reacciones de Formación de Enlaces Carbono-Carbono y Carbono-Heteroátomo Catalizadas por Complejos de Metales de Transición [PDF]

, 2015
La investigación en catálisis conduce al desarrollo de procesos con elevada eficacia, en términos de consumo de energía así como en producción de residuos.
Rodríguez Gimeno, Alejandra
core  

Capillary Electrophoresis With Amperometric Detection for Neurotransmitter Analysis: Principles, Electrode Materials, Methodologies, and Applications

ELECTROPHORESIS, EarlyView.
This review provides a comprehensive summary of monoamine neurotransmitter analysis by capillary electrophoresis with amperometric detection. Fundamental principles of amperometric detection, electrode positioning strategies, and approaches to high‐voltage decoupling are described, followed by a critical comparison of electrode materials, selection of ...
Petr Kubáň, Jiří Volánek, Nguyen Thi Thu Trang, Tran Dai Lam   +3 more
wiley   +1 more source

Ketogenic diet for infantile epileptic spasms

Epilepsia Open, EarlyView.
Abstract Approximately half of all cases of Infantile Epileptic Spasms Syndrome (IESS) do not respond to vigabatrin and hormonal therapies. There is no clear consensus as to the second‐line therapy for IESS. Ketogenic diet (KD) has emerged as an effective treatment for certain drug‐resistant epilepsies and in many cases of IESS.
Morris H. Scantlebury, Anamika Choudhary, Andy Cheuk‐Him Ng, Cezar Gavrilovici   +3 more
wiley   +1 more source

Total Synthesis of Indole Alkaloids Using Oxidative Coupling Reaction

Journal of Synthetic Organic Chemistry, Japan, 2006
A novel direct oxidative coupling reaction between carbonyl groups and indoles was recently developed. Total syntheses of highly functionalized natural products, (+) -hapalindole and (+) -welwitindolinone, were achieved using the new method. The present coupling strategy makes the synthesis of indole alkaloids highly concise and practical.
openaire   +2 more sources

Síntesis de indoles e indazoles por acción de ácidos sobre nitrofenilhidrazonas [PDF]

, 1965
1) Se ha efectuado un estudio de la extensión en que puede aplicarse la reacción de formación de indazoles a partirde nitrofenilhidrazonas por catálisis ácida (ácido polifosfórico).
Dennler, Enrique B.
core  

Spirobifluorene fusion in multiple resonance frameworks enables efficient pure‐red OLEDs with narrowband emission and suppressed efficiency roll‐off

FlexMat, EarlyView.
An orthogonal spirobifluorene‐fusion strategy is introduced for B/N/O‐alternated MR frameworks, enabling improved kRISC (5.46 × 103 s−1), high ΦPL (97%), and narrow‐band pure‐red emission. Vacuum‐evaporated OLEDs incorporating this emitter achieve an EQEmax >40% (FWHM = 36 nm) and exhibit exceptionally low efficiency roll‐off at high luminance ...
Yan‐Yun Jing, Han Wu, Xiaoling Xu, Sijie Xian, Jingsheng Miao, Xiaojun Yin, Chuluo Yang, Xiaosong Cao   +7 more
wiley   +1 more source

Construction of Chronic Kidney Disease Mouse Model Induced by Diets With Different Adenine Content

Food Safety and Health, EarlyView.
By administering a 4 weeks adenine diet to C57BL/6J mice, we identified 0.2% adenine in purified feed as the optimal chronic kidney disease model. This model induces severe renal damage, gut dysbiosis, uremic toxin accumulation, and CKD mineral bone disorder, providing a clinically relevant platform for mechanistic and therapeutic studies.
Wanjun Liao, Jiayao Wang, Yilian Huang, Na Zhang, Xiaodan Shi, Zongcai Tu, Zuohua Xie, Tao Yuan, Hongmei Yin   +8 more
wiley   +1 more source

Urolithin A, a Diet‐Derived Gut Microbial Metabolite Against Pulmonary Hypertension Identified via Molecular Docking, Molecular Dynamics and Surface Plasmon Resonance

Food Safety and Health, EarlyView.
Urolithin A, a gut microbial metabolite, binds TNF to suppress proliferation, inflammation, and oxidative stress, offering a promising microbe‐derived therapeutic avenue for pulmonary hypertension. ABSTRACT Pulmonary hypertension (PH) is a complex and multifactorial disease that poses a significant clinical challenge.
Yujie Qu, Yinghua Huo, Yichen Wang, Yao Mu, Xue Yu, Leiyu Tian, Jian Guo, Xuezhi Yang, Yucai Chen   +8 more
wiley   +1 more source