cas 4747-07-3, N-HEXYL METHYL ETHER | Articles data

Articles about 4747-07-3Total 9 be found

Kinetics and mechanism of the catalytic reaction between alcohols and dimethyl carbonate
The mechanism of the reaction between alcohols and dimethyl carbonate, catalyzed by dicobalt octacarbonyl Co2(CO)8, is studied by means of mathematical modeling. Kinetic models for possible schemes of chemical transformations are constructed at different initial concentrations of the catalyst. Based on a comparative analysis of activation energies of possible stages of chemical transformations, possible reaction pathways are determined and an appropriate mechanism is selected.
Koledina,Koledin,Shchadneva,Gubaidullin
p. 442 - 447
(2017/03/09)

Catalytic etherification of hydroxyl compounds to methyl ethers with 1,2-dimethoxyethane
1,2-Dimethoxyethane is explored for the first time as etherification agent for the acid-catalyzed synthesis of methyl ethers from biomass-derived hydroxyl compounds. H3PW12O40 catalyst can provide the formation of isosorbi
Che, Penghua,Lu, Fang,Si, Xiaoqin,Xu, Jie
p. 24139 - 24143
(2015/03/18)

Synthesis of alkyl methyl ethers and alkyl methyl carbonates by reaction of alcohols with dimethyl carbonate in the presence of tungsten and cobalt complexes
Alkyl methyl ethers and alkyl methyl carbonates were synthesized by reaction of alcohols with dimethyl carbonate in the presence of tungsten and cobalt carbonyls. Optimal reactant and catalyst ratios, as well as reaction conditions, were found for selective formation of alkyl methyl ethers or alkyl methyl carbonates.
Khusnutdinov,Shchadneva,Mayakova
p. 790 - 795
(2014/08/18)

Synthesis of ethers from esters via Fe-catalyzed hydrosilylation
Triiron dodecacarbonyl allows for the selective reduction of esters into the corresponding ethers. This protocol has a wide substrate scope. In addition, cholesteryl pelarogonate has been reduced under the reaction conditions with an excellent yield.
Das, Shoubhik,Li, Yuehui,Junge, Kathrin,Beller, Matthias
supporting information
p. 10742 - 10744
(2013/01/15)

ALKYLATING PROPERTIES OF ACID ORGANIC PHOSPHATES
Under the action of phenols and alcohols, acid alkyl phosphates undergo transesterification, which is accompanied by dealkylation of the latter and alkylation of the alcohols (phenols) at the hydroxy groups and aromatic rings.Isopropyl phosphates are stronger alkylating agents than methyl phosphates.Diphenyl methyl and phenyl dimethyl phosphates yield products of methylation of their own aromatic rings only upon prolonged pyrolysis.In all cases organic polyphosphates are formed.
Munik, S. N.,Eliseenkov, V. N.,Ivanov, B. E.
p. 378 - 382
(2007/10/03)

A New and Simple Method for the Preparation of Active Ti-β Zeolite Catalysts
Incorporation of titanium into the framework of zeolite beta was achieved by simple treating Al-β zeolite with an ammonium titanyl oxalate solution followed by air calcination; the material obtained is a very active catalyst for the epoxidation of olefins.
Reddy, Jale Sudhakar,Sayari, Abdelhamid
p. 23 - 24
(2007/10/02)

Selective etherification of polyhydroxybenzenes using PEG 200 as solvent or cosolvent
The monoalkylation of hydroquinone is performed using PEG 200 as a solvent or a cosolvent.The effect on the selectivity of the base strength, the temperature, and the percentage of cosolvent are discussed.The substituted phenols were found to behave differently upon etherification.When a carboxylic function is present in the ring, the hydroxybenzoic acids were selectively etherified using pure PEG and sodium hydroxyde as a base.Substituted diphenols were selectively etherified using a mixture of PEG and dioxan and potassium hydrogencarbonate as a base.Keywords - etherification / selectivity / polyhydroxybenzenes / polyethylene glycol
Berdague, P.,Perez, F.,Courtieu, J.,Bayle, J. P.
p. 475 - 480
(2007/10/02)

Reactions in Slightly Hydrated Solid/Liquid Heterogeneous Media: The Methylation Reaction with Dimethyl Sulfoxide
The O-methylation of alcohols and phenols with stoichiometric amounts of dimethyl sulfate in 1,4-dioxan or triglyme in the presence of solid potassium hydroxide and small amounts of water represents a useful method for the synthesis of methyl ethers in high yields and with high selectivity.The complete consumption of dimethyl sulfate in this reaction avoids the problems connected with the work-up of reaction mixtures still containing excess amounts of this toxic reagent.
Achet, D.,Rocrelle, D.,Murengezi, I.,Delmas, M.,Gaset, A.
p. 642 - 643
(2007/10/02)

Acid-induced 13C Nuclear Magnetic Resonance Chemical Shift Changes of Ether and Ester Carbon Atoms
13C N.m.r. chemical shifts of ehters dissolved in tetrachloromethane are displaced on addition of trifluoroacetic acid.The displacements result from independent interactions of the acid with the substrate oxygen atoms and alkyl residues.The structure-dependent and stereoselective shift changes are useful for signal assignments, structure determination, conformational analysis, assessment of the distribution of rapidly interconverting conformers of esters, and estimation of the relative basicity of ethers.
Begtrup, Mikael
p. 1609 - 1618
(2007/10/02)