scholarly journals The cumene/O2 system: a very simple tool for the radical chain oxidation of some functional groups

2017 ◽  
Vol 41 (15) ◽  
pp. 6981-6985 ◽  
Author(s):  
A. Malekafzali ◽  
K. Malinovska ◽  
F. W. Patureau
Keyword(s):  
Functional Groups ◽  
Radical Chain ◽  
Oxidation Method ◽  
Chain Oxidation ◽  
Metal Free ◽  
Radical Chain Oxidation ◽  
System A ◽  
Simple Tool ◽  
Free Oxidation

Just boil it in cumene! A general metal-free oxidation method is described.

Free-radical chain oxidation of rat red blood cells by molecular oxygen and its inhibition by α-tocopherol

1987 ◽  
Vol 258 (2) ◽  
pp. 373-380 ◽  
Author(s):  
Masayuki Miki ◽  
Hiroshi Tamai ◽  
Makoto Mino ◽  
Yorihiro Yamamoto ◽  
Etsuo Niki
Keyword(s):  
Free Radical ◽  
Red Blood Cells ◽  
Molecular Oxygen ◽  
Blood Cells ◽  
Radical Chain ◽  
Chain Oxidation ◽  
Radical Chain Oxidation

Ozonolysis of tetramethoxyethene

1988 ◽  
Vol 66 (9) ◽  
pp. 2234-2243 ◽  
Author(s):  
Karl R. Kopecky ◽  
José Molina ◽  
Rodrigo Rico
Keyword(s):  
Singlet Oxygen ◽  
Oxidation Reaction ◽  
Transfer Reaction ◽  
Dimethyl Carbonate ◽  
Electron Transfer Reaction ◽  
Initial Reaction ◽  
Radical Ions ◽  
Radical Chain ◽  
Chain Oxidation ◽  
Radical Chain Oxidation

Ozonolysis of tetramethoxyethene 1 produces 20–40% of dimethyl carbonate 3, 35–60% of methyl trimethoxyacetate 7, and 20–35% of the dioxetane 8 of 1. Yields vary with initial concentration of 1, temperature, and solvent. Singlet oxygen is produced, which reacts with 1 to form 8 and can be trapped with 2,5-dimethylfuran. No evidence for the formation of the molozonide of 1 was obtained. Up to 2.5 moles of 1 are consumed per mole of ozone. Ozonolysis of a mixture of 1 and 2,3-dimethyl-2-butene 12 gave the epoxide of 12 and three times the expected amount of the allylic hydroperoxide of 12. A competing radical chain oxidation reaction is proposed to account for these products and the stoichiometry of the ozonolysis. The initial reaction in the ozonolysis of 1 is proposed to be an electron transfer reaction that is calculated to be exothermic by > 35 kcal/mol. The resulting radical ions initiate the radical chain oxidation and combine to form the oxygenated epoxide 9 of 1. Loss of singlet oxygen from 9 forms the epoxide 10, which rearranges to 7. At −95 °C the zwitterion from 10 is trapped by CD3OD to produce a mixture of 7 with one α OCD3 group and pentamethoxyethanol with one β OCD3 group from which a CH3OD group is lost at ~ −10 °C to form more deuterated ester.

Antiradical activity of 5-amino-1,3,6-trimethyluracil in the radical chain oxidation of ethylbenzene as the model system

2013 ◽  
Vol 54 (3) ◽  
pp. 279-283 ◽  
Author(s):  
L. R. Yakupova ◽  
R. A. Sakhautdinova ◽  
A. Kh. Fattakhov ◽  
A. R. Gimadieva ◽  
R. L. Safiullin
Keyword(s):  
Antiradical Activity ◽  
Model System ◽  
Radical Chain ◽  
Chain Oxidation ◽  
Radical Chain Oxidation ◽  
Oxidation Of Ethylbenzene

Increasing the Ketone Selectivity of the Cobalt-Catalyzed Radical Chain Oxidation of Cyclohexane

2002 ◽  
Vol 8 (16) ◽  
pp. 3724-3731 ◽  
Author(s):  
Mathias Nowotny ◽  
Lone N. Pedersen ◽  
Ulf Hanefeld ◽  
Thomas Maschmeyer
Keyword(s):  
Radical Chain ◽  
Chain Oxidation ◽  
Radical Chain Oxidation

Determination of the chain termination rate constants of the radical chain oxidation of organic compounds on antioxidant molecules by the QSPR method

2020 ◽  
Vol 69 (9) ◽  
pp. 1679-1691
Author(s):  
Yu. Z. Martynova ◽  
V. R. Khairullina ◽  
R. N. Nasretdinova ◽  
G. G. Garifullina ◽  
D. S. Mitsukova ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Rate Constants ◽  
Chain Termination ◽  
Radical Chain ◽  
Chain Oxidation ◽  
Termination Rate ◽  
Radical Chain Oxidation ◽  
Oxidation Of Organic Compounds
Sign in / Sign up

Export Citation Format

Share Document