The Mechanism of the Thermal Decomposition of Methyl Ethyl Ketone

1955 ◽  
Vol 77 (24) ◽  
pp. 6453-6457 ◽  
Author(s):  
Chas. E. Waring ◽  
Marshall Spector
Keyword(s):  
Thermal Decomposition ◽  
Methyl Ethyl Ketone ◽  
Methyl Ethyl

Hemolytic decomposition of di-sec-butyl peroxide

1970 ◽  
Vol 48 (4) ◽  
pp. 615-627 ◽  
Author(s):  
R. Hiatt ◽  
Sandor Szilagyi
Keyword(s):  
Activation Energy ◽  
Thermal Decomposition ◽  
Hydrogen Production ◽  
Methyl Ethyl Ketone ◽  
Methyl Ethyl ◽  
Kcal Mole ◽  
Alkoxy Radicals ◽  
Solvent Cage ◽  
Butyl Peroxide

Rates and products have been determined for the thermal decomposition of sec-butyl peroxide at 110–150 °C in several solvents.The decomposition was shown to be unimolecular with energies of activation in toluene, benzene, and cyclohexane of 35.5 ± 1.0, 33.2 ± 1.0, 33.8 ± 1.0 kcal/mole respectively. The activation energy of thermal decomposition for the deuterated peroxide was found to be 37.2 + 1.0 kcal/mole in toluene.About 70–80% of the products could be explained by known reactions of free alkoxy radicals, and very little, if any, disproportionation of two sec-butoxy radicals in the solvent cage could be detected.The other 20–30% of the peroxide yielded H2 and methyl ethyl ketone. The yield of H2 was unaffected by the nature or the viscosity of the solvent, but H2 was not formed when s-Bu2O2 was photolyzed in toluene at 35 °C nor when the peroxide was thermally decomposed in the gas phase.α,α′-Dideutero-sec-butyl peroxide was prepared and decomposed in toluene at 110–150 °C. The yield of D2 was about the same as the yield of H2 from s-Bu2O2, but the rate of decomposition (at 135 °C) was only 1/1.55 as fast.Mechanisms for hydrogen production are discussed, but none satisfactorily explains all the evidence.

Study of thermal decomposition of methyl ethyl ketone peroxide using DSC and simulation

2007 ◽  
Vol 142 (3) ◽  
pp. 765-770 ◽  
Author(s):  
Jo-Ming Tseng ◽  
Ying-Yu Chang ◽  
Teh-Sheng Su ◽  
Chi-Min Shu
Keyword(s):  
Thermal Decomposition ◽  
Methyl Ethyl Ketone ◽  
Methyl Ethyl Ketone Peroxide ◽  
Methyl Ethyl

Isotopic tracer studies of the thermal decomposition of tert . -butyl hydroperoxide

1966 ◽  
Vol 291 (1425) ◽  
pp. 235-243 ◽  
Keyword(s):  
Thermal Decomposition ◽  
Methyl Ethyl Ketone ◽  
Probable Mechanism ◽  
Methyl Ethyl ◽  
Reaction Products ◽  
Mechanism Of Formation ◽  
Tracer Studies ◽  
Butyl Hydroperoxide ◽  
Tert Butyl Hydroperoxide ◽  
Slow Combustion

The thermal decomposition of tert . -butyl hydroperoxide has been investigated at temperatures from 245 to 440 °C and the effects of added oxygen and acetone on the nature and distribution of the reaction products have been determined. Experiments in the presence of [1, 3- 14 C] acetone at 340 °C show that the major part of the methyl ethyl ketone formed from tert . -butyl hydroperoxide is produced via further reactions of acetone, and degradation of the labelled methyl ethyl ketone indicates the distribution of activity throughout the molecule. These results yield valuable information regarding the probable mechanism of formation of the ketone. The measurements carried out, when considered in relation to earlier work on the slow combustion of isobutane, suggest that tert . -butyl hydroperoxide does not play an important part as an intermediate during the oxidation of the corresponding hydrocarbon.

Highly efficient synthesis of methyl ethyl ketone oxime through ammoximation over Ti-MOR catalyst

2014 ◽  
Vol 34 (1) ◽  
pp. 243-250
Author(s):  
Jianghong DING ◽  
Le XU ◽  
Hao XU ◽  
Haihong WU ◽  
Yueming LIU ◽  
...  
Keyword(s):  
Methyl Ethyl Ketone ◽  
Methyl Ethyl ◽  
Efficient Synthesis ◽  
Highly Efficient

Electroinduced oxidative copolymerization ofN-vinyl carbazole with methyl ethyl ketone formaldehyde resin

2004 ◽  
Vol 15 (7) ◽  
pp. 365-369 ◽  
Author(s):  
Belkıs Ustamehmetoğlu ◽  
A. Sezai Saraç ◽  
Nilgün Kızılcan ◽  
Ahmet Akar
Keyword(s):  
Methyl Ethyl Ketone ◽  
Formaldehyde Resin ◽  
Methyl Ethyl ◽  
Oxidative Copolymerization
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