نتایج جستجو برای: ethyl ester
تعداد نتایج: 68659 فیلتر نتایج به سال:
A new series of 5-substituted-3-methylsulfanyl-1-(2,4-dinitro phenyl)-1H-pyrazole-4-carboxylic acid ethyl esters were synthesized by reacting the amino group of 5-amino-3-methylsulfanyl-1-(2,4-dinitro phenyl)-1H-pyrazole-4carboxylic acid ethyl ester with acid anhydrides, acid chlorides and phenyl dithiocarbamates. The title compounds were investigated for analgesic, anti-inflammatory and ulcero...
In the title compound, C(16)H(14)ClFO(3), the dihedral angle between the mean planes of the two benzene rings is 71.50 (5)°. Due to an intra-molecular O-H⋯O hydrogen bond between the hy-droxy group and the carbonyl O atom of the ethyl ester group, the ethyl ester group lies within the ring plane. The crystal structure is consolidated by inter-molecular C-H⋯O and C-H⋯F inter-actions.
This study assessed the metabolite profile of raw and cooked pasta from whole wheat grain enriched with Bambara groundnut using gas chromatography high-resolution time-of-flight mass spectrometry (GC-HRTOF-MS). Different metabolites (49), such as alcohols, amides, aldehydes, amines (4%), aromatic compounds (6%), fatty acids acid ethyl ester ketones lipids (2%), nucleobase phenolic plasticizer s...
3-Oxo-3-phenyl-2-(p-tolylhydrazono)propanal (1a) undergoes condensation with ethyl cyanoacetate in acetic acid in the presence of ammonium acetate to yield either 2-hydroxy-6-phenyl-5-p-tolylazonicotinic acid ethyl ester (6a) or 2-amino-6-phenyl-5-ptolyl-azonicotinic acid ethyl ester (8), depending on the reaction conditions. Similarly, other 3-oxo-3-aryl-2-arylhydrazonopropanals 1a,b condense ...
Benefits of eicosapentaenoic acid (EPA) can be enhanced by raising their bioavailability through microencapsulation.Pollen can be emptied to form hollow shells, known as exines, and then used to encapsulate material,such as oils in a dry powder form.6 healthy volunteers ingested 4.6 g of fish oil containing 20% EPA in the form of ethyl-ester first alone and then as 1:1 microencapsulated powder ...
Ethyl acetate is an ester of ethanol and acetic acid. This compound a colorless liquid with characteristic odor. widely used as solvent because its high solubility. The manufacture ethyl (ethyl ester) referred to the esterification process. reaction exothermic reaction, reversible generally runs very slowly so it requires catalyst obtain maximum ester. Domestic demand for increasing, while prod...
Manilkara subsericea (Mart.) Dubard (Sapotaceae) is popularly known in Brazil as "guracica." Studies with Manilkara spp indicated the presence of triterpenes, saponins, and flavonoids. Several activities have been attributed to Manilkara spp such as antimicrobial, antiparasitic and antitumoral, which indicates the great biological potential of this genus. In all, 87.19% of the hexanic extract f...
It has been known for some time (Hansen, 1891) that organic esters may be produced in small amounts by some microorganisms as byproducts in their utilization of organic compounds. A detailed review of the literature to 1922 on aroma producing microorganisms is given by Omelianski (1923). The taxonomy of the yeast genus Hansenula, which contains species producing the greatest yields of ester, is...
With an increase in the global pollution, there is requirement for an alternative to the fossil fuels. Non-edible vegetable oils are highly promising for producing liquid fuels like diesel. Jatropha is a potential feedstock for biodiesel, currently utilized in India and many parts of the world. The optimization of reaction conditions such as temperature, time, catalyst and molar ratio for biodi...
With an increase in the global pollution, there is requirement for an alternative to the fossil fuels. Non-edible vegetable oils are highly promising for producing liquid fuels like diesel. Jatropha is a potential feedstock for biodiesel, currently utilized in India and many parts of the world. The optimization of reaction conditions such as temperature, time, catalyst and molar ratio for biodi...
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