The catalyst is useful in the epoxidation of ethylene.
The selectivity of an olefin epoxidation process catalyzed by a titanium-containing zeolite is improved by performing the epoxidation in the presence of a non-ionic tertiary amine or tertiary amine oxide additive.
In particular, the processing steps comprise bodying, epoxidation, hydrolysis, and oligomerization.
The invention does not require complete epoxidation, as it makes use of the unepoxidized hydroxyl groups of the precursor molecule.
17-beta-estradiol epoxidation, which in turn generates a carcinogenic compound
The present invention relates to the synthesis of chiral epoxides via a catalytic asymmetric oxidation of olefins.
Also disclosed is an epoxy resin mixture produced by epoxidizing the phenolic resin mixture.
Certain novel epoxidized low viscosity polydiene polymers are also described.
Such epoxidized fatty acid alkyl esters can be prepared by epoxidizing a natural oil with an acid and a peroxide.
An epoxidized vegetable oil ester obtained by epoxidizing a fatty acid through the esterification of the vegetable oil is used as the insulating polymer component.
Clear, amine-initiated polyether polyols are made by epoxidizing an amine in the presence of an alkali metal hydroxide catalyst.
Clear, amine-initiated polyether polyols are made by epoxidizing an amine in the presence of an alkali metal hydroxide catalyst.
The process for producing a styrene oxide derivative comprises the step of deacetalizing the acetalsulfonate derivative and the step of epoxidizing the thus-treated sulfonate derivative with the aid of a base catalyst.
The specification discloses a method for the manufacture of a fluorescent polyphenolic product with high UV absorbance, its subsequent epoxidation as well as polyphenolic products and epoxidized derivatives and compositions thereof.
The invention concerns a method whereby an oxirane prepared by epoxidation of an olefinic compound by a peroxidized compound in liquid medium is separated from the reaction medium by liquid-liquid extraction using an extraction solvent.
Radiation at 550and/or 570 or 571 nm (emission and detection, vertically resolved) serves as a reference waveband unaffected by the de-epoxidation (used for PRI).
The rubber-modified epoxy resin is one obtained by epoxidizing a polymer having rubber elasticity and combines the high elasticity characteristic of rubbers with high bonding strength due to epoxidization.
This is particularly surprising because neither titanium zeolite nor the supported gold-containing catalyst alone is effective in olefin epoxidation.
Process for the selective preparation of β-isophorone epoxide by epoxidation of β-isophorone with organic percarboxylic acids at a water content of less than 5 wt.%.
The brominated and epoxidized organic compounds can be prepared by sequentially brominating and epoxiding (in either order) a starting compound that contains multiple non-conjugated carbon-carbon double bonds.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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