Results 31 to 40 of about 397 (163)

A reactive coupling process for co-production of solketal and biodiesel

open access: yesGreen Processing and Synthesis, 2019
A “reactive coupling” process for one-pot transesterification of rapeseed oil into fatty acid methyl esters (FAME) for biodiesel, and in situ acetalisation of the glycerol by-product to solketal was investigated by both an experimental and a kinetic ...
Al-Saadi Luma Sh.   +2 more
doaj   +1 more source

Progress in Application of Solketal in Waterborne Polyurethane Coatings

open access: yesPige Kexue Yu Gongcheng
SignificanceWith the growing emphasis on green environmental protection concepts in society, waterborne polyurethane (WPU) coatings are widely used in various fields such as automobiles, construction, shipping, and wood products due to their ...
Minghe ZHOU   +5 more
doaj   +1 more source

TRANSACETALIZATION OF GLYCEROL WITH 2,2-DIMETHOXYPROPANE USING ZEOLITES UNDER MILD CONDITIONS [PDF]

open access: yesQuímica Nova
The acetalization or transacetalization reactions produce acetals or ketals used in cosmetics, food, pharmaceuticals, and fuel additives. Besides synthesizing several products, the acetalization or transacetalization reactions can protect carbonyl groups,
Paula M. Veiga   +3 more
doaj   +1 more source

Activated Bentonite Nanocomposite for the Synthesis of Solketal from Glycerol in the Liquid Phase

open access: yesCatalysts, 2022
Activated bentonites are low-cost acid catalysts used in several reactions. However, their application at an industrial scale is affected by the formation of colloidal suspensions when these bentonites are in aqueous solutions. In order to overcome these limitations, this work proposes obtaining a catalyst based on a composite containing natural ...
Pérez, Federico Martín   +5 more
openaire   +2 more sources

A Rapid and Green Method for the Preparation of Solketal Carbonate from Glycerol

open access: yesReactions
Glycerol is a biogenic waste that is generated in both the biodiesel and oleo-chemical industries. The value addition of surplus glycerol is of utmost importance for making these industries economically profitable.
Sanjib Kumar Karmee   +3 more
doaj   +1 more source

Investigation of the spray formation of solketal under diesel engine conditions and the influence on Diesel R33.

open access: yesFuel Processing Technology
The defossilization of diesel fuels presents a multitude of new opportunities and challenges. Due to the increase in complexity and interactions between the components, it is necessary to examine the drop-in capability of new fuel components.
Julian Türck   +7 more
doaj   +1 more source

Ketal Protection of Glycerol for Selective Electrosynthesis of Glyceric Acid in Highly Alkaline Media

open access: yesAngewandte Chemie International Edition, EarlyView.
Using a ketal‐protected glycerol derivative (solketal) as the oxidation substrate enables site‐selective electrooxidation that suppresses C–C cleavage on non‐noble catalysts. Highly alkaline conditions promote reactive solketal alkoxide formation, weaken the Cα─H bond to facilitate dehydrogenation, and buffer local acidification, enabling a record‐high
Jiamin Wang   +6 more
wiley   +1 more source

One-pot synthesized efficient molybdenum‑niobium-oxide nanocatalyst for selective C-O and C-N coupling reactions at mild conditions

open access: yesCatalysis Communications, 2023
An efficient molybdenum‑niobium-oxide nanomaterial was synthesized by a one-pot hydrothermal method for selective C-O (glycerol ketalization) and C-N coupling (benzylamine oxidation) reactions.
Pavan Narayan Kalbande   +4 more
doaj   +1 more source

Phosphonomethyl (Thio)Phosphonamidite Reagents for the Construction of Phosphonylmethyl Phosphono(Di)Thioate Mono‐ and Diesters

open access: yesChemistry – A European Journal, EarlyView.
A set of new phosphonomethyl (thio)phosphonamidite reagents is introduced to generate unprecedented pyrophosphate mimetics. The versatile P(III)‐P(V) reagents allow for the construction of various pyrophosphate isosteres, and the applicability of the chemistry is illustrated in the assembly of a diverse set of stabilized CDP‐glycerol and CDP‐ribitol ...
Pascal Balić   +4 more
wiley   +1 more source

Glycerol as Precursor of Organoselanyl and Organotellanyl Alkynes

open access: yesMolecules, 2017
Herein we describe the synthesis of organoselanyl and organotellanyl alkynes by the addition of lithium alkynylchalcogenolate (Se and Te) to tosyl solketal, easily obtained from glycerol.
Eder J. Lenardão   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy