Calcined Mg-Al hydrotalcites catalyst in the regioselective synthesis of silylated vicinal azidohydrins
نویسندگان
چکیده
منابع مشابه
Synthesis of some Mg/Co-Al type nano hydrotalcites and characterization
Hydrotalcites are quite prevalent in nature and their importance is growing more and more because of their very wide range of potential applications and uses. Because hydrotalcite does not exist in significant quantities in nature, coprecipitation methods are the most used for prepartion of hydrotalcite. In this study: Two types of Nano hydrotalcite compounds containing one divalent (Mg-Al) and...
متن کاملUse of calcined Mg-Al-hydrotalcite to enhance the stability of celecoxib in the amorphous form.
The use of compound in amorphous forms is a promising approach to improve solubility of poorly water-soluble drugs. However, during storage, amorphous state can spontaneously transform to the lower energy crystalline form and this is a limiting factor for a large commercial use of drugs. In this paper, calcined hydrotalcite was employed to support amorphous celecoxib and several preparations at...
متن کاملcomparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.
heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
15 صفحه اولTwofold role of calcined hydrotalcites in the degradation of methyl parathion pesticide
Methyl parathion (MP) is a very toxic organophosphate pesticide used as a non-systematic insecticide and acaricide on many corps. As MP and its by-products are highly toxic, they have to be retained to avoid pollution of rivers and lakes. Highly efficient sorbents are hydrotalcites (HTs) (or anionic clays). We have correlated the degradation of an aqueous solution of MP at room temperature, wit...
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ژورنال
عنوان ژورنال: Arkivoc
سال: 2003
ISSN: 1551-7012
DOI: 10.3998/ark.5550190.0004.b18