Results 21 to 30 of about 22,275 (301)

The Reaction of Aminonitriles with Aminothiols: A Way to Thiol-Containing Peptides and Nitrogen Heterocycles in the Primitive Earth Ocean

Life, 2018
The Strecker reaction of aldehydes with ammonia and hydrogen cyanide first leads to α-aminonitriles, which are then hydrolyzed to α-amino acids.
Ibrahim Shalayel, Seydou Coulibaly, Kieu Dung Ly, Anne Milet, Yannick Vallée   +4 more
doaj   +1 more source

Synthesis and male contraceptive activity of C-substituted imidazoles.

, 1997
Synthesis and male contraceptive activity of C-substituted ...
Frank Sherman. Davis (7980674)
core   +4 more sources

1-Propyl-4(5)-Methylimidazole Isomers for Temperature Swing Solvent Extraction

Molecules, 2022
Temperature swing solvent extraction (TSSE) utilizes an amine solvent with temperature-dependent water solubility to dissolve water at a lower temperature to concentrate or crystallize the brine and the phases are separated.
Shuai Qian, Lauren M. Ward, Luke S. Rakers, Steven T. Weinman, Jason E. Bara   +4 more
doaj   +1 more source

Cyclization of Activated Methylene Isocyanides with Methyl N(N),N′-Di(tri)substituted Carbamimidothioate: A Novel Entry for the Synthesis of N,1-Aryl-4-tosyl/ethoxycarbonyl-1H-imidazol-5-amines

SynOpen, 2019
Base-induced cyclization of active methylene isocyanides with carbamimidothioates for the synthesis of N,1-aryl-4-tosyl/ethylcarboxy-1H-imidazol-5-amines is reported.
Dukanya Dukanya, Toreshettahally R. Swaroop, Shobith Rangappa, Kanchugarakoppal S. Rangappa, Basappa Basappa   +4 more
doaj   +1 more source

Fruit juices act as biocatalysts in the efficient synthesis of potentially bioactive imidazoles

Green Chemistry Letters and Reviews, 2022
An efficient and eco-friendly itinerary has been carried out for the synthesis of imidazole derivatives (3a–3h) from the reactions between substituted aldehydes (1a–1h), benzil (2a), and ammonium acetate (2b) in Citrus limon L.
Susheel Gulati, Rajvir Singh, Suman Sangwan   +2 more
doaj   +1 more source

β–Cyclodextrin–Propyl Sulfonic Acid Catalysed One-Pot Synthesis of 1,2,4,5-Tetrasubstituted Imidazoles as Local Anesthetic Agents

Molecules, 2015
Some functionalized 1,2,4,5-tetrasubstituted imidazole derivatives were synthesized using a one-pot, four component reaction involving 1,2-diketones, aryl aldehydes, ammonium acetate and substituted aromatic amines.
Yan Ran, Ming Li, Zong-Ze Zhang
doaj   +1 more source

Synthesis, Characterization, and Catalytic Properties of Magnetic Fe3O4@FU: A Heterogeneous Nanostructured Mesoporous Bio-Based Catalyst for the Synthesis of Imidazole Derivatives

Frontiers in Chemistry, 2020
In this protocol, Fucoidan (FU), a fucose-rich sulfated polysaccharide extracted from brown algae Fucus vesiculosus was used for in situ preparation of magnetic Fe3O4@FU. Nanoco magnetic properties of Fe3O4@FU were investigated by energy dispersive X-ray
Maryam Banazadeh, Sara Amirnejat, Shahrzad Javanshir   +2 more
doaj   +1 more source

Regiocontrolled synthesis of 1,2-diaryl-1H-imidazoles by palladium- and copper-mediated direct coupling of 1-aryl-1H-imidazoles with aryl halides under ligandless conditions

, 2006
A large variety of 1,2-diaryl-1H-imidazoles, including a selective COX-2 inhibitor, have been regioselectively synthesised in moderate to high yields by direct coupling of 1-aryl-1H-imidazoles with aryl iodides or bromides in DMF in the presence of CsF ...
ROSSI, RENZO, Mannina L, Viel S., BELLINA, FABIO, Cauteruccio S   +4 more
core   +2 more sources

Lower micromolar activity of the antifungal imidazoles on the bacterial-type bifunctional aldehyde/alcohol dehydrogenase (AdhE) in Cryptosporidium parvum and in vitro efficacy against the zoonotic parasite

International Journal for Parasitology: Drugs and Drug Resistance
Cryptosporidium parvum is a waterborne and foodborne zoonotic protozoan parasite, a causative agent of moderate to severe diarrheal diseases in humans and animals. However, fully effective treatments are unavailable for medical and veterinary uses. There
Haichuan Chen, Dongqiang Wang, Chenchen Wang, Peng Jiang, Mingxiao Liu, Jigang Yin, Yonglan Yu   +6 more
doaj   +1 more source

Cholinesterase-like organocatalysis by imidazole and imidazole-bearing molecules [PDF]

Scientific Reports, 2017
AbstractOrganocatalysis, which is mostly explored for its new potential industrial applications, also represents a chemical event involved in endogenous processes. In the present study, we provide the first evidence that imidazole and imidazole derivatives have cholinesterase-like properties since they can accelerate the hydrolysis of acetylthiocholine
NIERI, PAOLA, CARPI, SARA, FOGLI, STEFANO, POLINI, BEATRICE, BRESCHI, MARIA CRISTINA, PODESTA', ADRIANO   +5 more
openaire   +3 more sources