Results 71 to 80 of about 41,666 (217)

Divinylglycol, a Glycerol-Based Monomer: Valorization, Properties, and Applications [PDF]

open access: yesGreen Polymer Chemistry: New Products, Processes, and Applications, pp.299-330, 2018, 2019
In the context of the development of bio-refineries, glycerol and its derivatives are co-products of the oleochemistry for which new valorization routes must be found. In this study, the polymerizability of divinylglycol (DVG), a symmetrical C-6 glycerol derivative which bears a vicinal diol and two vinyl functions was studied.
arxiv   +1 more source

Surface decorated magnetite nanoparticles with birhodanine and MoO2Cl2(dmf)2 as a new magnetic catalyst for epoxidation of olefins [PDF]

open access: yesJournal of Particle Science and Technology, 2019
In this work, the synthesis and characterization of a new magnetically supported Mo6+ complex have been reported as a catalyst for epoxidation of olefins. For this purpose, a new silylating compound containing a birhodanine moiety, i.e.
Arman Rahmaninia   +4 more
doaj   +1 more source

A Computational Investigation of the Catalytic Properties of Graphene Oxide: Exploring Mechanisms Using DFT Methods [PDF]

open access: yesChemCatChem 4, 1844-184 (2012), 2012
Here we describe a computational study undertaken in an effort to elucidate the reaction mechanisms behind the experimentally observed oxidations and hydrations catalyzed by graphene oxide (GO). Using the oxidation of benzyl alcohol to benzaldehyde as a model reaction, density functional theory (DFT) calculations revealed that this reactivity stemmed ...
arxiv   +1 more source

Lactose as an inexpensive starting material for the preparation of aldohexos-5-uloses: synthesis of L-ribo and D-lyxo derivatives [PDF]

open access: yes, 2010
SUMMARY: Partially protected derivatives of L-ribo- and D-lyxo-aldohexos-5-ulose have been prepared starting from triacetonlactose dimethyl acetal derivatives.
Catelani, Giorgio   +2 more
core   +1 more source

Chemical looping epoxidation

open access: yesJournal of Catalysis, 2018
Chemical looping epoxidation of ethylene was demonstrated, whereby the sole oxidant was a solid oxygen carrier, 15 wt% Ag supported on SrFeO3. Ethylene reacted with a bed of carrier particles, without any O2(g) in the feed, to produce ethylene oxide (EO) and CO2.
Chan, MSC   +3 more
openaire   +2 more sources

Synthesis of sonochemical chloroacetated natural rubber and its potential use in passenger car tire tread

open access: yesArabian Journal of Chemistry, 2023
This article describes the preparation of chloroacetated natural rubber (CNR) through the epoxidation of natural rubber (NR) latex with performic acid, followed by the reaction with chloroacetic acid.
Terana Senakham   +5 more
doaj  

Heterogenisation of ketone catalysts within mesoporous supports for asymmetric epoxidation

open access: yes, 2013
The synthesis of the first mesoporous silica (150 Å) anchored carbohydrate-derived chiral ketone is described. This new heterogeneous catalyst has been shown to be effective in the asymmetric epoxidation of olefins by oxone.
Adam   +60 more
core   +1 more source

Carbohydrate-derived iminium salt organocatalysts for the asymmetric epoxidation of alkenes [PDF]

open access: yes, 2014
A new family of carbohydrate-based dihydroisoquinolinium salts has been prepared and tested for potential as asymmetric catalysts for the epoxidation of unfunctionalized alkene substrates, providing up to 57% ee in the product ...
Adam   +149 more
core   +1 more source

Oxidoperoxidomolybdenum(VI) complexes with acylpyrazolonate ligands: synthesis, structure and catalytic properties [PDF]

open access: yes, 2018
Oxidoperoxido–molybdenum(VI) complexes containing acylpyrazolonate ligands were obtained by reaction of [Mo(O)(O)2(H2O)n] with the corresponding acylpyrazolone compounds HQR.
Begines, Emilio   +7 more
core   +1 more source

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