نتایج جستجو برای: oxidation of alcohols
تعداد نتایج: 21172174 فیلتر نتایج به سال:
Abstract A sustainable photochemical protocol for the oxidation of alcohols to ketones and carboxylic acids has been developed by using 2,4,6‐triphenylpyrylium tetrafluoroborate (TPPT) as organophotocatalyst molecular oxygen oxidant under visible light irradiation. The key reactive species, superoxide (O 2 •− ) first step from alcohol aldehyde singlet ( 1 O second acid, were generated successfu...
A mild, efficient and fast method for the oxidation of alcohols and trimethylsilyl and tetrahydropyranyl ethers to their corresponding carbonyl compounds using CrO3 in the presence of sulfonic acid functionalized ordered nanoporous Na+-montmorillonite (SANM) and under solvent-free conditions is reported. All reactions were performed at room temperature in high to excellent...
The biaryl coupling of substituted aromatic alcohols and the oxidation of p-hydroquinones with molecular oxygen catalyzed by VO(acac)2 were achieved in good to excellent yields.
The enantioselective oxidation of secondary alcohols represents a valuable approach for the synthesis optically pure compounds. Flavoprotein oxidases can catalyse such selective transformations by merely using oxygen as electron acceptor. While many flavoprotein preferably act on primary alcohols, FAD-containing alcohol oxidase from Phanerochaete chrysosporium was found to be able perform kinet...
A facile, selective and high yielding bis(trimethylsilyl) chromate (BTSC) catalyzed selective oxidation of alcohols to aldehydes and ketones with periodic acid is reported.
A trace amount of metal carbonate, acetate or borate significantly boosts gold nanocatalysts in selective aerobic oxidation of alcohols under mild solvent-free conditions.
A soluble Pt nanocluster catalyst (Pt-GLY) is efficient in the absence of base for aqueous-phase aerobic oxidation of, in particular, non-activated alcohols with high recyclability.
A simple, efficient, and environmentally-friendly heterogeneous Ru/C-catalyzed oxidation of secondary and primary alcohols without additives under an atmosphere of oxygen has been established.
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