Results 41 to 50 of about 48,089 (168)

Extraction of Collagen from Kedukang Fish Bone (Hexanematichthys sagor) at Various Concentrations of Acetic Acid Solution

open access: yesGrouper
The bones of kedukang fish, a by-product of jambal roti production in Pangandaran, have the potential to be a source of collagen. Collagen extraction can be done chemically using acetic acid solution.
Veronica Veronica   +3 more
doaj   +1 more source

Metabolites Identification of Chemical Constituents From the Eggplant (Solanum melongena L.) Calyx in Rats by UPLC/ESI/qTOF-MS Analysis and Their Cytotoxic Activities

open access: yesFrontiers in Pharmacology, 2021
Eggplant (Solanum melongena L.) Calyx is a medicinal and edible traditional Chinese medicine with anti-inflammatory, anti-oxidant, and anti-cancer properties. However, the pharmacodynamic components and metabolic characteristics remain unclear. Amide and
Yuanyuan Song   +8 more
doaj   +1 more source

Palladium Iodide Catalyzed Multicomponent Carbonylative Synthesis of 2-(4-Acylfuran-2-yl)acetamides

open access: yesMolecules, 2023
2-Propargyl-1,3-dicarbonyl compounds have been carbonylated under oxidative conditions and with the catalysis of the PdI2/KI catalytic system to selectively afford previously unreported 2-(4-acylfuran-2-yl)acetamides in fair to good yields (54–81%) over ...
Ida Ziccarelli   +6 more
doaj   +1 more source

Synthesis of methylenebisamides using CC- or DCMT-activated DMSO

open access: yesBeilstein Journal of Organic Chemistry, 2008
Bisamides are key fragments for the introduction of gem-diaminoalkyl residues into retroinverso pseudopeptide derivatives and in the synthesis of peptidomimetic compounds. The literature methods for these types of compounds have certain drawbacks.
Qiang Wang   +3 more
doaj   +1 more source

Pd-Catalyzed Carbonyl Insertion Coupling Reactions of a Hypervalent Iodoheterocycle with Alcohols and Amines

open access: yesMolecules, 2005
The palladium-catalyzed cross-coupling carbonyl insertion reaction between 3,7-bis(N,N-dimethylamino)-10H-dibenz[b,e]iodinium iodide (1) and alcohols or amines 2 is described.
Yong-Min Liang   +2 more
doaj   +1 more source

Amide Proton Transfer Imaging in Clinics: Basic Concepts and Current and Future Use in Brain Tumors and Stroke

open access: yes대한영상의학회지, 2016
Amide proton transfer (APT) imaging is gaining attention as a relatively new in vivo molecular imaging technique that has higher sensitivity and spatial resolution than magnetic resonance spectroscopy imaging.
Ji Eun Park, Geon-Ho Jahng, Ha-Kyu Jeong
doaj   +1 more source

Empirical method for predicting the enthalpy changes of combustion of amides [PDF]

open access: yesJournal of the Serbian Chemical Society, 2019
The enthalpy change of combustion is one of the basic thermochemical characteristics of an organic compound, indicating the amount of heat produced in the complete combustion of the substance.
Ryskaliyeva Alma K.   +2 more
doaj   +1 more source

Physicochemical Properties of Fluoride-Based Eutectic Electrolytes Composed of Tetramethylammonium Fluoride and N-Methyltrifluoroacetamide

open access: yesElectrochemistry
Development of F−-containing electrolytes with high electrochemical oxidation stability is crucial for electrochemical fluorination. Although various combinations of fluoride salts and solvents have been investigated for preparing the electrolytes, there
Hiroki YAMAMOTO, Kazuki YOSHII
doaj   +1 more source

Benzylation of N-phenyl-2-phenylacetamide under microwave irradiation [PDF]

open access: yesJournal of the Serbian Chemical Society, 2008
N-Phenyl-2-phenylacetamide was alkylated with benzyl chloride in the presence of powdered potassium hydroxide under microwave irradiation in a solvent-free system. The reactions were also performed in the presence of phase-transfer catalysts.
DUSAN Z. MIJIN   +2 more
doaj  

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