Synergistic catalysis within core-shell Fe3O4@SiO2 functionalized with triethylene glycol (TEG)-imidazolium ionic liquid and tetramethylpiperidine N-oxyl (TEMPO) boosting selective aerobic oxidation of alcohols was written by Karimi, Babak;Ghaffari, Bahareh;Vali, Hojatollah. And the article was included in Journal of Colloid and Interface Science in 2021.Formula: C7H6Cl2O This article mentions the following:
It is expected that incorporation of 2, 2, 6, 6-tetra-Me piperidine-N-oxyl radical (TEMPO) and an imidazolium bromide bearing hydrophilic triethylene glycol (TEG) groups on Fe3O4@SiO2 core-shell may not only result in a novel highly water-dispersible/magnetically separable multi-functional catalyst system for metal-free aerobic oxidation of alcs., which operates through a synergistic relay pathway, but it could potentially provide a strong platform for simultaneous separation and recycling of all components. The catalyst was prepared by anchoring TEMPO moieties onto a magnetic core-shell Fe3O4@SiO2 functionalized with an ionic liquid bearing TEG groups. The materials was characterized using transmission electron microscopy, Fourier transform IR spectroscopy, nitrogen adsorption-desorption isotherms, thermal gravimetric anal., and elemental anal. The performance of the catalyst was evaluated and quant. measured in the aerobic oxidation of alcs. in water. The catalyst exhibited excellent and stable colloidal dispersion in water and high performance in the aerobic oxidation of various types of alcs. under metal- and halogen-free reaction conditions. As hypothesized, strong synergistic effect between functionalized components was seen in the described reaction. The catalyst displayed excellent dual-adjustable-selectivity in the oxidation of primary alcs. to either the corresponding aldehydes or carboxylic acids by tuning the reaction solvent and/or reaction time and excellent recycling behavior through a “double-separation-strategy”. In the experiment, the researchers used many compounds, for example, (2,4-Dichlorophenyl)methanol (cas: 1777-82-8Formula: C7H6Cl2O).
(2,4-Dichlorophenyl)methanol (cas: 1777-82-8) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Formula: C7H6Cl2O
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts