Results 131 to 140 of about 397 (163)

Polyesters based on Solketal derivatives for controlled release of herbicides

Materials Science and Engineering: C, 1994
Abstract Monomeric Solketal derivatives containing 2,4-dichlorophenoxyacetic and 4-chloro-2-methylphenoxyacetic acids have been prepared, followed by polycondensations with dicarboxylic acids, such as resorcinol and hydroquinol diacetic acids, and adipic acid, to give the corresponding linear polyesters.
A. Akelah, A. Rehab, S. Kandil, M.M. El-Gamal   +3 more
openaire   +1 more source

Optimized double kinetic resolution for the preparation of (S)-solketal

Tetrahedron: Asymmetry, 1997
Abstract The lipase AK (lipase from Pseudomonas sp. )-catalysed alcoholysis of racemic solketal (2,2-dimethyl-1,3-dioxolane-4-methanol) esters and acylation of solketal in organic solvents proceeded with E =20–25. This enabled the preparation of the more reactive ( S )-enantiomer with more than 30% total isolated yield (based on the racemate) and ...
Eero Vänttinen, Liisa T Kanerva
openaire   +1 more source

Microwave-assisted synthesis of solketal from glycerol and acetone

Kataliz v promyshlennosti
Herein, microwave-assisted synthesis of solketal from glycerol and acetone in the presence of montmorillonite modified with aqueous solution of 0.25 mol/l HCl (0.25M HCl/MM) was demonstrated. The reaction was studied in a methanol solution at an acetone/glycerol molar ratio of 2.45–7.53, a catalyst concentration of 1.2–2.8 wt.% (based on the mass of ...
V. A. Bolotov, A. E. Kibilyuk, V. N. Parmon, V. N. Panchenko, M. N. Timofeeva   +4 more
openaire   +1 more source

Production of solketal from glycerol : effect of water removal and its use in preparation of benzyl solketal ether

In the past, petrochemical industry had been a major producer of glycerol. Because of the high growth of biodiesel, glycerol is also produced at the same growing rate. This situation brings the price of glycerol to drop dramatically. Therefore, it should be a way to increase value of this by-product.
openaire   +1 more source

Esterification Of Solketal And Levulinic Acid Over Heterogeneous Acid Catalysts

2023
This work studied the esterification of solketal (SK) and levulinic acid (LA) over heterogeneous acid catalysts, including Amberlyst 15, Amberlyst 36 wet, HUSY zeolite, HMS-SO3H and NR/HMS-SO3H. The effect of reaction conditions on the reactants conversion and products distribution were studied such as reaction time, molar ratio of SK: LA, reaction ...
openaire   +1 more source

Microwave-assisted valorization of glycerol to solketal using biomass-derived heterogeneous catalyst

Fuel, 2023
Manickam Selvaraj, Samuel Lalthazuala Rokhum, Gopinath Halder   +2 more
exaly  

Economic feasibility of a solketal production process from glycerol at small industrial scale

Renewable Energy, 2022
Martin Nicolas Gatti
exaly  

Study of performance parameters and emissions of four stroke CI engine using solketal-biodiesel blends

SN Applied Sciences, 2021
Pardeep Kumar, Shailendra Kumar, Kumar Shailendra   +2 more
exaly  

Sustainable Upgrade of Bioderived Glycerol to Solketal through Acetalization over Metal-Free Mordenite Catalysts

ACS Sustainable Chemistry and Engineering, 2022
N Viswanadham, Anup Tathod, Selvamani Arumugam   +2 more
exaly  

Glycerol Conversion to Solketal: Catalyst and Reactor Design, and Factors Affecting the Yield

ChemBioEng Reviews, 2021
, Mohammed Danish, Sikander Rafiq
exaly