Catalyst‐Free Oxidation of Alcohols at Room Temperature Using Water as Solvent

Lei, Ziqiang; Yang, Yaoxia; Bai, Xiangzhen

doi:10.1002/adsc.200505356

Cited by 18 publications

(3 citation statements)

References 13 publications

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“…Water is considered as a green solvent in chemistry because it is nontoxic, nonflammable, and low-cost. At the same time, some organic reactions can proceed faster and more selectively in water than in traditional organic solvents. − Nevertheless, most organic compounds are insoluble in water and are difficult to react, therefore phase-transfer catalysts (PTCs) are required. The PTCs as the soul of the aqueous phase organic reactions burden the important responsibility of transferring the reactant from aqueous or solid phase to the organic phase so that it can encounter the substrate and react …”

Section: Introductionmentioning

confidence: 99%

Quaternary Ammonium-Based Functionalized Polyacrylonitrile Fibers with Polarity Tunable Inner Surface Microenvironment for C–C Bond Forming Reactions under Continuous Flow Conditions

Wang

Xiao

et al. 2019

Ind. Eng. Chem. Res.

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A series of quaternary ammonium-based (QAB) functionalized polyacrylonitrile fibers as superbase catalysts for CC bond forming reactions in water were prepared. Alkyl with different chain lengths and benzyl were used to tune the hydrophobicity/hydrophilicity and polarity of the inner surface microenvironment of the QAB functionalized fiber catalysts, and the different microenvironment and the active site synergistically promote the completion of the reaction. The mechanism of the influence of different hydrophilic/hydrophobic catalysts on catalytic activity was proposed. The quaternary ammonium-based functionalized fibers with eight carbon alkyl chains (PANQAB‑8F) as the optimal catalyst performed excellently in green water solvent with specific advantages of low catalyst dosage, mild conditions, high efficiency, and extensive substrate adaptation. Furthermore, the PANQAB‑8F catalyst is very suitable for the continuous flow process, and more than 86% yield was obtained even after the continuous reaction for 160 h; the fiber can be recovered easily and recycled more than 10 times in the continuous-flow system.

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Section: Introductionmentioning

confidence: 99%

Quaternary Ammonium-Based Functionalized Polyacrylonitrile Fibers with Polarity Tunable Inner Surface Microenvironment for C–C Bond Forming Reactions under Continuous Flow Conditions

Wang

Xiao

et al. 2019

Ind. Eng. Chem. Res.

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“…of IBX is generally used for the oxidation of alcohols) [8]. In a previous report, we described a procedure for the oxidation of alcohols in that we used tetra-n-butyl ammonium Oxone Ò n-Bu 4 NHSO 5 as oxidant [9]. Recently Thottumkara et al demonstrated catalytic use of IBX in the presence of Oxone Ò for the oxidation of primary and secondary alcohols in user-and eco-friendly solvent mixtures [10].…”

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confidence: 99%

A simple and efficient oxidation system for the oxidation of alcohols utilizing Oxone® as oxidant catalyzed by polymer-supported 2-iodobenzamide

2007

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“…In our ongoing research programs, 21,22,[24][25][26][27] we found that in water as medium, palygorskite is active in the oxidation of alcohols in the presence of Oxone ® (2KHSO 5 •KHSO 4 •K 2 SO 4 ). This novel oxidation system could convert a variety of alcohols to the corresponding carbonyl compounds.…”

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confidence: 99%

Mild and Selective Oxidation of Alcohols Using Oxone® as An Oxidant Catalyzed by Palygorskite in Water

Wu¹,

Ma²,

Lei³

2010

Synlett

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Palygorskite, a natural, environmentally friendly and inexpensive fibrillar silicate clay mineral, was applied as a catalyst in the oxidation of alcohols in aqueous media. The oxidation transformation effectively proceeded in the presence of an environmentally benign oxidant Oxone ® . Benzyl alcohols, benzhydrols, cyclic and aliphatic alcohols could be oxidized to their corresponding acids or ketones in moderate to high yield and good selectivity at 50 °C or 70 °C in 21 hours.

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Catalyst‐Free Oxidation of Alcohols at Room Temperature Using Water as Solvent

Abstract: An effective, cheap, environmentally benign and catalyst-free oxidation of alcohols was carried out at room temperature using tetra-n-butylammonium Oxone (TBA-OX) as oxidant with moderate to high selectivity for most of the alcohols using water as the solvent.

Cited by 18 publications

References 13 publications

Quaternary Ammonium-Based Functionalized Polyacrylonitrile Fibers with Polarity Tunable Inner Surface Microenvironment for C–C Bond Forming Reactions under Continuous Flow Conditions

Quaternary Ammonium-Based Functionalized Polyacrylonitrile Fibers with Polarity Tunable Inner Surface Microenvironment for C–C Bond Forming Reactions under Continuous Flow Conditions

A simple and efficient oxidation system for the oxidation of alcohols utilizing Oxone® as oxidant catalyzed by polymer-supported 2-iodobenzamide

Mild and Selective Oxidation of Alcohols Using Oxone® as An Oxidant Catalyzed by Palygorskite in Water

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