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    Oxone: a Convenient Reagent for the Oxidation of Acetals

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    Symmetrical cyclic and acyclic acetals by oxidation with Oxone(R) gave the corresponding esters in good yield. Treatment of tetrahydropyranyl derivatives of alcohols with the same reagent resulted in oxidative regeneration of the alcohols

    The Synthesis of Solvent-Free Glycidic Esters from Diazoesters and Carbonyl Compounds Catalysed by Lanthanide Triflates

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    The results of the reaction between ethyl diazoacetate and carbonyl compounds catalysed by lanthanide triflates are described, Aldehydes, and alpha-unsubstituted and alpha-monosubstituted cyclohexanones react to give the selective formation of alpha,beta-epoxy esters (glycidic esters), whereas other ketones are unreactive

    Ytterbium Triflate Promoted Tandem One-pot Oxidation-Cannizzaro Reaction of Aryl Methyl Ketones

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    Ytterbium triflate was shown to be an effective catalyst in promoting the synthesis of either isopropyl esters or free r-hydroxy-arylacetic acids from substituted aromatic glyoxals and aryl methyl ketones, respectively. The reaction to provide acids starting from differently substituted ketones was carried out by an environmentally friendly method using an aqueous medium as a solvent and giving the adducts in 78-99% yield without any further purification after the usual workup
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