Tempo-mediated oxidation是一步法反应,即将Tempo(2,2,6,6-四甲基-1-哌啶氧化物)与底物一起反应得到产物。在该反应中,Tempo作为催化剂稳定地存在于反应体系中,并且能够循环使用。 过程解释上来说,tempo-mediated oxidation涉及底物分子与Tempo之间发生氧化还原反应。首先,Tempo通过与底物分子发生单电子转移形成一个自由...
TEMPO体系或TEMPO氧化体系的意思 四甲基哌啶氧化物自由基(TEMPO)希望可以帮到你~
TEMPO-mediated oxidation of native cellulose: microscopic analysis of fibrous fractions in the oxidized products. Carbohydr. Polym. 65, 435-440.TEMPO-mediated oxidation of native cellulose: Microscopic analysis of fibrous fractions in the oxidized products[J] . T. Saito,Y. Okita,T.T. Nge,J. ...
TEMPOOxidationSEC-MALLSThe 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated oxidation was applied to water-insoluble (1 → 3)-β--glucans, paramylon and curdlan, to prepare water-soluble oxidized products. When the addition level of NaClO used as the primary oxidant was 15...
Treatment of dicobalt octacarbonyl with TEMPO in THF at room temperature, in the presence of oleic acid as the sole additive, leads to the formation of monodisperse nanoparticles (ca.3.0 nm diameter) of CoO; the particles agglomerate in solution at room temperature into aggregates, and this pr...
Bouchard, "TEMPO-mediated surface oxidation of cellulose nanocrystals (CNCs)," Cellulose, pp. 1-16, 2017.Fraschini, C., Chauve, G. G., & Bouchard, J. (2017). TEMPO-mediated surface oxidation of cellulose nanocrystals (CNCs). Cellulose, 24, 2775-2790....
Cellulose whiskers resulting from HCl acid hydrolysis of tunicin were subjected to TEMPO-mediated oxidation under various conditions and the extent of the resulting oxidation was characterized by Fourier-transform infrared spectroscopy (FT-IR), conductimetry, X-Ray diffraction analysis and transmission el...
Linter cellulose was suspended in water and oxidized by the NaClO/NaBr/2,2,6,6-tetramehylpiperidine-1-oxy radical (TEMPO) system at pH 10.5 (TEMPO-mediated oxidation), and the oxidized products were separated into several fractions by filtration and centrifugation, depending on their particle si...
TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-mediated oxidation was applied to β-chitins, originating from tubeworm and squid pen, to prepare chitin nanofibrils. Water-insoluble fractions of the TEMPO-oxidized β-chitins were obtained in various ratios by controlling the addition level...
ChemInform Abstract: TEMPO-Mediated Oxidation of Alcohols with Ion-Supported (Diacetoxyiodo)benzenes.oxidation, dehydrogenationketones (benzene compounds)ketones (acyclic compounds)aldehydes (benzene compounds)aldehydes (acyclic compounds)Efficient ion-supported reagents (I) and (II) are applied to the ...