Results 31 to 40 of about 13,676 (263)

Kinetics of 1-hexanol etherification on Amberlyst 70 [PDF]

open access: yes, 2016
The kinetics of the liquid-phase etherification of 1-hexanol to di-n-ethyl ether and water on the ion-exchange resin Amberlyst 70 in the temperature range 423-463 K is studied. The strong inhibition effect of water is considered following two approaches.
Bringué Tomàs, Roger   +4 more
core   +1 more source

Total Syntheses of HMP-Y1, Hibarimicinone, and HMP-P1 [PDF]

open access: yes, 2012
Total syntheses of HMP-Y1, atrop-HMP-Y1, hibarimicinone, atrop-hibarimicinone, and HMP-P1 are described using a two-directional synthesis strategy. A novel benzyl fluoride Michael–Claisen reaction sequence was developed to construct the complete carbon ...
Liau, Brian Bor-Jen   +2 more
core   +1 more source

Copper‐Catalyzed Three‐Component Selective 1,4‐Amino Oxygenation of 1,3‐Dienes

open access: yesAngewandte Chemie, EarlyView.
Enclosed is a copper‐catalyzed selective 1,4‐amino oxgenation of 1,3‐dienes with the presence of a strong Brønsted acid. This three‐component transformation offers a novel and powerful approach to construct (E)‐1,4‐allylic amino oxygenated motifs by the simultaneous installation of structurally diverse alkylamines and alcohols directly onto 1,3‐dienes.
Guangshou Feng   +2 more
wiley   +2 more sources

Experimental and Simulation Studies for Purification and Etherification of Glycerol from the Biodiesel Industry

open access: yesAppliedChem, 2023
In this study, a purification route was applied to crude glycerol and its valorization via etherification was evaluated. Crude glycerol samples were obtained through transesterification reactions of soybean oil with methanol using potassium hydroxide as ...
Silvia S. O. Silva   +4 more
doaj   +1 more source

Dehydration of n-propanol and methanol to produce etherified fuel additives

open access: yesAIMS Energy, 2017
An ether is an organic compound that consists of an oxygen atom bonded to two alkyl or aryl groups. In this work, we investigate the bimolecular dehydration of two alcohols, n-propanol and methanol with catalysts that are used in transesterification ...
Husam Almashhadani   +2 more
doaj   +1 more source

Iodine-Catalyzed Etherification of Morroniside

open access: yesChemical and Pharmaceutical Bulletin, 2009
In this study, we describe a highly selective etherification procedure of unprotected morroniside catalyzed by molecular iodine in acetone. The etherification reaction furnished 7-O-alkyl ether derivatives in reasonable yields within few hours under neutral conditions.
SUNGHWA, Fortunatus   +3 more
openaire   +4 more sources

Synthesis of Biomass-Derived Ethers for Use as Fuels and Lubricants. [PDF]

open access: yes, 2019
Ethers synthesized from biomass-derived compounds have exceptional properties as fuels, lubricants, and specialty chemicals and can serve as replacements for petroleum-derived products.
Bell, Alexis T   +2 more
core   +1 more source

(S)-4-[(3aR,4S,7aR)-4-Methoxy-6-methyl-3-methylene-2-oxo-2,3,3a,4,7,7a-hexahydrobenzofuran-5-yl]pentyl Acetate

open access: yesMolbank, 2016
A new etherified 1-O-acetylbritannilactone (ABL) analogue 2 was semi-synthesized by a mild etherification reaction. The structure of the newly synthesized analogue was identified by 1H-NMR, 13C-NMR and HR-ESI-MS analysis. 2 exhibited similar cytotoxicity
Xin Guo, Jin-Ming Gao, Jiang-Jiang Tang
doaj   +1 more source

Dehydrative etherification reactions of glycerol with alcohols catalyzed by recyclable nanoporous aluminosilicates: telescoped routes to glyceryl ethers [PDF]

open access: yes, 2015
Catalytic strategies for the efficient transformation of abundant sustainable bioderived molecules, such as glycerol, into higher value more useful products is an important research goal.
Apperley, David C.   +6 more
core   +3 more sources

Oligomeric Aromatic Oxides (OAO) Production From Sugarcane Bagasse Lignin by Acid-Catalyzed Solvothermal Liquefaction in Methanol

open access: yesFrontiers in Energy Research, 2020
Extracted alkali lignin (AL) and organosolv lignin (OL) from sugarcane bagasse were acid-catalyzed liquefied in methanol with the aim of producing oligomeric aromatic oxides.
Yi Cheng   +4 more
doaj   +1 more source

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