Results 81 to 90 of about 35,351 (202)
European Journal of Organic Chemistry, EarlyView.Organic azides are readily reduced to amines under mild conditions by ammonia borane complex, catalyzed by a low loading level of reusable Au nanoparticles supported on TiO2. We present the first protocol for the chemoselective reduction of organic azides to amines by ammonia borane complex. In the presence of a low catalytic amount of Au nanoparticles
Elisavet‐Maria Zantioti‐Chatzouda +5 more
wiley +1 more source
"One Pot" Synthesis of 1,5-Diaza-2,3,6,7-Thetrahydro-4-Methyl-Phenanthrene-4,8-Dione From Corresponding Bis-Beta-Amino Acid [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 1999 The cyclization of b-anilino propionic acids in the presence of polyphosphoric acid (PPA) afforded the 2,3-Dihydroquinoline-4-(1H)-ones in good yields. N,N'-bis(2-carboxyethyl)-4-methyl-1,2-diaminobenzene (7) is cyclized under this condition to produce ...
Abbas Shokravi +1 more
doaj
Quinoline based receptor in fluorometric discrimination of carboxylic acids
Beilstein Journal of Organic Chemistry, 2008 Quinoline and naphthalene-based fluororeceptors 1 and 2 have been designed and synthesized for detection of hydroxy carboxylic acids in less polar solvents.
Kumaresh Ghosh +3 more
doaj +1 more source
Indole‐Based π‐Extended Monophosphine Ligands for Enhanced Palladium‐Catalyzed Sonogashira Coupling
Journal of Heterocyclic Chemistry, EarlyView.A general palladium‐catalyzed Sonogashira cross‐coupling of (hetero)aryl chlorides with aliphatic, (hetero)aryl alkynes is described using Pd(dba)₂/PCy2‐Napdole‐phos catalyst system. The reaction protocol exhibits broad substrate scope and the catalyst loading can be down to 0.2 mol% Pd.
Yu Kiu Lau +9 more
wiley +1 more source
Application and Synthesis of a New Hybrid Heterocyclic Derivative with Antioxidant Evaluation
Chemistry ProceedingsNew hydrazinecarboximidamide derivatives were successfully synthesized with excellent yields. These compounds have been proven to be potent inhibitors of acetylcholinesterase and tubulin, and they also exhibit significant antioxidant effects. Furthermore,
Amira Ait Belkacem +2 more
doaj +1 more source
ChemistryOpen, EarlyView.In organic synthesis, deep eutectic solvents (DES) have demonstrated their ability to be used as reaction media for the development of reactions in line with green chemistry principles. This review presents an overview of microwave‐assisted organic synthesis in DES, highlighting the diversity of uses for these solvents, their role in mechanisms, the ...
Pierre‐Olivier Delaye +2 more
wiley +1 more source
Pige Kexue Yu GongchengA gas chromatography-mass spectrometry (GC-MS) method was developed for the simultaneous determination of quinoline, pyridine, and crotonaldehyde in footwear materials.
Yuhong TANG +4 more
doaj +1 more source
Additives for Aluminum‐Air Batteries: A Review
Small, EarlyView.The role of electrolyte additives in Al–air batteries is investigated by focusing on their capacity to moderate Al corrosion rates, inhibit self‐discharge, and prevent surface barrier formation. Additives present in organic, inorganic, and hybrid categories, which regulate the Al–electrolyte interface by forming protective films on the Al surface ...
Hajar Mahmoudi +6 more
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 CB and CC/CX bond formation for the synthesis of cycles ...
Jaime Mateos‐Gil +3 more
wiley +1 more source
Research advances in the applications of mitochondria‐targeted cyanine dyes in imaging
VIEW, EarlyView.Near‐infrared (NIR) fluorescence imaging, a novel non‐invasive diagnostic tool, plays a crucial role in the imaging and monitoring of solid tumors. At its core are NIR fluorescent dyes, which are widely utilized due to their ability to minimize tissue autofluorescence interference, thereby significantly enhancing the signal‐to‐noise ratio (SNR) and ...
Hongye Liao +8 more
wiley +1 more source