Synthesis of Three-Dimensional-Ordered Mesoporous Cobalt Oxides for Selective Oxidation of Benzyl Alcohol

Li, Min; Fu, Xiaoran; Peng, Ling; Bai, Lu; Wu, Shujie; Kan, Qiubin; Guan, Jingqi

doi:10.1002/slct.201701943

Cited by 15 publications

(12 citation statements)

References 37 publications

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“…The filtrate was concentrated on a rotavapor and the product was purified by silica gel column chromatography. The identity of all three monoterpenes was confirmed by 1 H and 13 C NMR analysis, IR spectroscopy, and comparison with published data [27,28]…”

Section: Isolation Of Rotundifolonesupporting

confidence: 55%

“…After evaporation of the solvent under reduced pressure, the product was purified by column chromatography on silica gel. (−)-Perillyl aldehyde was prepared from (−)-perillyl alcohol by selective oxidation using pyridinium chlorochromate (PCC) as the oxidising agent and dry CH 2 Cl 2 as the solvent, according to the method described in [27]. In brief, to a solution of (−)-perillyl alcohol (59.21 mmol) in 462 mL of dry CH 2 Cl 2 , a solution of PCC (177.63 mmol) in CH 2 Cl 2 was slowly added.…”

Section: Isolation Of Rotundifolonementioning

confidence: 99%

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Evaluation of Antiparasitc Activity of Mentha crispa Essential Oil, Its Major Constituent Rotundifolone and Analogues against Trypanosoma brucei

2016

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Considering the pressing need for new drugs to treat sleeping sickness and Nagana disease, essential oil, its principal constituent rotundifolone, and four related-menthane-type monoterpenes (two stereoisomers of limonene epoxide, perillyl alcohol, and perillyl aldehyde) were investigated for their activity against bloodstream forms of . The general cytotoxicity of the compounds was determined with human myeloid HL-60 cells. The effect of the essential oil and the monoterpenes on the growth of parasite and human cells was evaluated in cell cultures with the resazurin viability assay. Of all of the compounds tested, essential oil, rotundifolone, and perillyl aldehyde showed the highest trypanocidal activities with 50 % growth inhibition (GI) and minimum inhibitory concentration values of 0.3 µg/mL and 1 µg/mL, respectively. In contrast, HL-60 cells were considerably less sensitive to the compounds with minimum inhibitory concentration values of 100 µg/mL and GI values ranging between 3.4 to 13.8 µg/mL. As a consequence of this, GI and minimum inhibitory concentration ratios of cytotoxic to trypanocidal activity (selectivity index) of these three compounds were promising with values of 11-45 and 100, respectively. These results indicate that the -menthane-type monoterpenes rotundifolone and perillyl aldehyde are interesting lead candidates for further rational antitrypanosomal drug development.

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Section: Isolation Of Rotundifolonesupporting

confidence: 55%

Section: Isolation Of Rotundifolonementioning

confidence: 99%

Evaluation of Antiparasitc Activity of Mentha crispa Essential Oil, Its Major Constituent Rotundifolone and Analogues against Trypanosoma brucei

2016

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“…Ordered mesoporous metal oxides have promising applications in many fields due to their structural regularity, adjustable pore size, and high specific surface area [13]. Up to now, many ordered mesoporous metal oxides such as Co 3 O 4 [35,36,37], TiO 2 [38,39], WO 3 [40,41], Al 2 O 3 [42,43,44], ZrO 2 [45,46,47], CeO 2 [48,49,50], NiO [51,52], Cr 2 O 3 [53,54], Sm 2 O 3 [55], In 2 O 3 [2,56], and UO 2 [57] have been successfully synthesized. Although some ordered mesoporous metal oxides have been successfully synthesized, the structural stability and thermal stability still demand further improvement.…”

Section: Types Of Ordered Mesoporous Materialsmentioning

confidence: 99%

Designing and Fabricating Ordered Mesoporous Metal Oxides for CO2 Catalytic Conversion: A Review and Prospect

Cui

Lian

et al. 2019

Materials

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In the past two decades, great progress has been made in the aspects of fabrication and application of ordered mesoporous metal oxides. Ordered mesoporous metal oxides have attracted more and more attention due to their large surface areas and pore volumes, unblocked pore structure, and good thermal stabilities. Compared with non-porous metal oxides, the most prominent feature is their ability to interact with molecules not only on their outer surface but also on the large internal surfaces of the material, providing more accessible active sites for the reactants. This review carefully describes the characteristics, classification and synthesis of ordered mesoporous metal oxides in detail. Besides, it also summarizes the catalytic application of ordered mesoporous metal oxides in the field of carbon dioxide conversion and resource utilization, which provides prospective viewpoints to reduce the emission of greenhouse gas and the inhibition of global warming. Although the scope of current review is mainly limited to the ordered mesoporous metal oxides and their application in the field of CO2 catalytic conversion via heterogeneous catalysis processes, we believe that it will provide new insights and viewpoints to the further development of heterogeneous catalytic materials.

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“…[71] Highly ordered mesoporous Co 3 O 4 have been prepared by Li et al through silica-templating methods to obtain a catalyst with a high surface area compared to a commercial Co 3 O 4 sample and active in the oxidation of benzyl alcohol. [72] Gu et al reported a one-step template-free solvothermal method to synthesize recyclable hollow carbon-modified Fe 3 O 4 catalyst active in the oxidation of benzyl alcohol. [73] Mesoporous NiO/Bi 2 WO 6 nanocomposite has been synthesized by Pordel et al and found to be an efficient catalyst for the oxidation of primary and secondary benzylic alcohols under mild conditions.…”

Section: Oxide-based Catalystsmentioning

confidence: 99%

A Perspective on Heterogeneous Catalysts for the Selective Oxidation of Alcohols

Najafishirtari

Ortega

Douthwaite

et al. 2021

Chemistry A European J

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Selective oxidation of higher alcohols using heterogeneous catalysts is an important reaction in the synthesis of fine chemicals with added value. Though the process for primary alcohol oxidation is industrially established, there is still a lack of fundamental understanding considering the complexity of the catalysts and their dynamics under reaction conditions, especially when higher alcohols and liquid-phase reaction media are involved. Additionally, new materials should be developed offering higher activity, selectivity, and stability. This can be achieved by unraveling the structure-performance correlations of these catalysts under reaction conditions. In this regard, researchers are encouraged to develop more advanced characterization techniques to address the complex interplay between the solid surface, the dissolved reactants, and the solvent. In this mini-review, we report some of the most important approaches taken in the field and give a perspective on how to tackle the complex challenges for different approaches in alcohol oxidation while providing insight into the remaining challenges.

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Synthesis of Three-Dimensional-Ordered Mesoporous Cobalt Oxides for Selective Oxidation of Benzyl Alcohol

Cited by 15 publications

References 37 publications

Evaluation of Antiparasitc Activity of Mentha crispa Essential Oil, Its Major Constituent Rotundifolone and Analogues against Trypanosoma brucei

Evaluation of Antiparasitc Activity of Mentha crispa Essential Oil, Its Major Constituent Rotundifolone and Analogues against Trypanosoma brucei

Designing and Fabricating Ordered Mesoporous Metal Oxides for CO2 Catalytic Conversion: A Review and Prospect

A Perspective on Heterogeneous Catalysts for the Selective Oxidation of Alcohols

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