scholarly journals Oxidation of Alcohols by Cerium(IV). II. Oxidation of Methanol by Ceric Sulfate

1963 ◽  
Vol 36 (8) ◽  
pp. 949-953 ◽  
Author(s):  
S. S. Muhammad ◽  
K. Vijayachander Rao
Keyword(s):  
Ceric Sulfate ◽  
Oxidation Of Methanol ◽  
Oxidation Of Alcohols

scholarly journals Ag-Based Catalysts in Heterogeneous Selective Oxidation of Alcohols: A Review

Catalysts ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 447 ◽  
Author(s):  
Viktoriia V. Torbina ◽  
Andrei A. Vodyankin ◽  
Sergey Ten ◽  
Grigory V. Mamontov ◽  
Mikhail A. Salaev ◽  
...  
Keyword(s):  
Heterogeneous Catalysts ◽  
Active Component ◽  
Ambient Air ◽  
Sustainable Technologies ◽  
Oxidation Of Methanol ◽  
Catalyst Composition ◽  
Oxidation Of Alcohols ◽  
Metal Support ◽  
Allyl Alcohols ◽  
Conversion Of Alcohols

Alcohols (bioalcohols) is a class of chemicals that are used as a feedstock for the manufacturing of a large number of valuable intermediates in industrially important processes. Currently, sustainable technologies for selective conversion of alcohols utilize “green” oxidants, mainly, ambient air or oxygen. Due to the high affinity of oxygen towards silver, the latter serves as an active component of supported heterogeneous catalysts. In this review, we consider Ag-based catalysts that participate in gas- or liquid-phase oxidation of alcohols. Oxidation of methanol, ethanol, ethylene glycol, propylene glycol, glycerol, benzyl and allyl alcohols is mostly considered. A particular attention is paid to selective photooxidation of alcohols over Ag-based catalysts. We discuss the catalyst composition in terms of (1) the state of the active component, (2) the nature of the substrate, (3) support nature, and (4) the strength of the metal–support interactions.

scholarly journals The role of oxygenated species in the catalytic self-coupling of MeOH on O pre-covered Au(111)

2020 ◽  
Author(s):  
Romain Réocreux ◽  
Ioanna Fampiou ◽  
Michail Stamatakis
Keyword(s):  
Aerobic Oxidation ◽  
Oxidation Of Methanol ◽  
Oxidation Of Alcohols

The oxidation of alcohols plays a central role in the valorisation of biomass, in particular when performed with a non-toxic oxidant such as O2. Aerobic oxidation of methanol on gold...

Kinetic Isotope Effects in the Radiation-induced Oxidation of Alcohols by Hydrogen Peroxide in Aqueous Solution

1971 ◽  
Vol 49 (8) ◽  
pp. 1305-1309 ◽  
Author(s):  
C. E. Burchill ◽  
G. F. Thompson
Keyword(s):  
Hydrogen Peroxide ◽  
Kinetic Isotope Effect ◽  
Transfer Reaction ◽  
Isotope Effects ◽  
Kinetic Isotope Effects ◽  
Chain Oxidation ◽  
Oxidation Of Methanol ◽  
Kinetic Isotope ◽  
Oxidation Of Alcohols ◽  
Radiation Induced

By using selectively deuterated alcohols it is demonstrated that abstractions from both α and β positions of 2-propanol and ethanol contribute to the overall mechanism for the radiation-induced chain oxidation of these alcohols by hydrogen peroxide. Kinetic isotope effects are measured for abstraction of H by OH from 2-propanol and ethanol at both α and β positions and for the H atom transfer reaction from the alcohol to the β radical. The chain oxidation of methanol shows no primary kinetic isotope effect on substitution of CD3OH.

Selective Oxidation of Alcohols Catalyzed by a Transition Metal-Free System of NHPI/DDQ/NaNO2

2011 ◽  
Vol 32 (1) ◽  
pp. 118-122 ◽  
Author(s):  
Lipeng ZHOU ◽  
Chaofeng ZHANG ◽  
Tao FANG ◽  
Bingbing ZHANG ◽  
Ying WANG ◽  
...  
Keyword(s):  
Transition Metal ◽  
Selective Oxidation ◽  
Free System ◽  
Metal Free ◽  
Oxidation Of Alcohols

Synthesis of Novel Phthalocyanine and Using It as a Heterogeneous, Reusable and Efficient Catalyst for the Oxidation of Alcohols

2013 ◽  
Vol 2 (2) ◽  
pp. 151-158 ◽  
Author(s):  
Mohammad Ali Zolfigol ◽  
Ali Reza Pourali ◽  
Sami Sajjadifar ◽  
Shohreh Farahmand
Keyword(s):  
Efficient Catalyst ◽  
Oxidation Of Alcohols

Oxidation of (1-hydroxybenzyl)ferrocene and its derivatives substituted in phenyl ring with bis(triphenylsilyl) chromate

1982 ◽  
Vol 47 (12) ◽  
pp. 3375-3380 ◽  
Author(s):  
Jaroslav Holeček ◽  
Karel Handlíř ◽  
Milan Nádvorník ◽  
Milan Vlček
Keyword(s):  
Linear Dependence ◽  
Rate Constants ◽  
Oxidation Rate ◽  
Phenyl Ring ◽  
Equilibrium Constants ◽  
Aprotic Solvents ◽  
Protonation Equilibrium ◽  
Oxidation Of Alcohols ◽  
Hammett Σ Constants ◽  
Sulphuric Acid Medium

Kinetics have been studied of oxidation of (1-hydroxybenzyl)ferrocenes substituted in phenyl ring with bis(triphenylsilyl) chromate in benzene solutions as well as protonation of these alcohols in sulphuric acid medium. Logarithms of the oxidation rate constants (kobs, 20-40 °C) and those of the protonation equilibrium constants (KR+, 25 °C) show linear dependence on the Hammett σ constants, the ρ constant values being -0.86 to -0.40 and -2.50, respectively. These negative values suggest that the both processes are influenced by the same effects and confirm the mechanism proposed earlier for oxidation of alcohols with ferrocenyl substituent by action of bis(triphenylsilyl) chromate in aprotic solvents.

Oxidative transformation of alcohols and organic halides in aqueous solution

2014 ◽  
Vol 38 (8) ◽  
pp. 3749-3754 ◽  
Author(s):  
Neeraj Gupta ◽  
Apoorva Thakur ◽  
Pushpa Bhardwaj
Keyword(s):  
Aqueous Solution ◽  
Oxidative Transformation ◽  
Organic Halides ◽  
Oxidation Of Alcohols

Using water as the only solvent for the oxidation of alcohols and organic halides, a complete solventless process for the preparation of water immiscible aldehydes has been developed.

scholarly journals β-Ketophosphonates with Pentalenofuran Scaffolds Linked to the Ketone Group for the Synthesis of Prostaglandin Analogs

2021 ◽  
Vol 22 (13) ◽  
pp. 6787
Author(s):  
Constantin I. Tănase ◽  
Constantin Drăghici ◽  
Miron Teodor Căproiu ◽  
Anamaria Hanganu ◽  
Gheorghe Borodi ◽  
...  
Keyword(s):  
Lithium Salt ◽  
Methyl Esters ◽  
Secondary Compounds ◽  
Molecular Structures ◽  
Keto Group ◽  
High Yield ◽  
Oxidation Reactions ◽  
Prostaglandin Analogues ◽  
X Ray ◽  
Oxidation Of Alcohols

β-Ketophosphonates with pentalenofurane fragments linked to the keto group were synthesized. The bulky pentalenofurane skeleton is expected to introduce more hindrance in the prostaglandin analogues of type III, greater than that obtained with the bicyclo[3.3.0]oct(a)ene fragments of prostaglandin analogues I and II, to slow down (retard) the inactivation of the prostaglandin analogues by oxidation of 15α-OH to the 15-keto group via the 15-PGDH pathway. Their synthesis was performed by a sequence of three high yield reactions, starting from the pentalenofurane alcohols 2, oxidation of alcohols to acids 3, esterification of acids 3 to methyl esters 4 and reaction of the esters 4 with lithium salt of dimethyl methanephosphonate at low temperature. The secondary compounds 6b and 6c were formed in small amounts in the oxidation reactions of 2b and 2c, and the NMR spectroscopy showed that their structure is that of an ester of the acid with the starting alcohol. Their molecular structures were confirmed by single crystal X-ray determination method for 6c and XRPD powder method for 6b.

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