A Vapor-phase Free Radical Displacement Reaction: the Reaction of Methyl Radicals with trans-Methyl Propenyl Ketone1

1957 ◽  
Vol 79 (24) ◽  
pp. 6370-6372 ◽  
Author(s):  
J. N. Pitts ◽  
R. S. Tolberg ◽  
T. W. Martin
Keyword(s):  
Free Radical ◽  
Vapor Phase ◽  
Displacement Reaction ◽  
Methyl Radicals ◽  
Trans Methyl

Isomerization of methyl isocyanide sensitized by vibrationally excited ethane

1969 ◽  
Vol 47 (4) ◽  
pp. 669-671
Author(s):  
D. H. Shaw ◽  
B. K. Dunning ◽  
H. O. Pritchard
Keyword(s):  
Free Radical ◽  
Total Pressure ◽  
The Other ◽  
Direct Transfer ◽  
Displacement Reaction ◽  
Methyl Radicals ◽  
Vibrationally Excited ◽  
Methyl Isocyanide

The isomerization of methyl isocyanide in the presence of methyl radicals takes place by two mechanisms. One is the simple free-radical displacement reaction which has been described previously. The other is through a direct transfer of energy from vibrationally excited ethane molecules. The vibrationally sensitized component can be quenched by increasing the total pressure.

Radical displacement reactions: The vapor phase reaction of methyl radicals with allyl formate

1968 ◽  
Vol 46 (14) ◽  
pp. 2451-2454
Author(s):  
G. Greig ◽  
J. C. J. Thynne
Keyword(s):  
Vapor Phase ◽  
Phase Reaction ◽  
Displacement Reaction ◽  
Methyl Radicals ◽  
Hydrogen Atoms ◽  
Temperature Range ◽  
Principal Reaction ◽  
Displacement Reactions ◽  
Vapor Phase Reaction

Trideuteromethyl radicals have been reacted in the vapor phase with allyl formate and the principal reaction over the temperature range 100–250 °C has been shown to be the displacement reaction[Formula: see text][Formula: see text]Hydrogen atoms generated by this decomposition also react readily to produce propylene by the reaction[Formula: see text]

Aromatic substitution. XV. The homolytic methylation of pyridine and 3- and 4-picoline

1967 ◽  
Vol 45 (5) ◽  
pp. 509-513 ◽  
Author(s):  
R. A. Abramovitch ◽  
K. Kenaschuk
Keyword(s):  
Free Radical ◽  
Methyl Radicals ◽  
Aromatic Substitution ◽  
Phenyl Radicals

The ratios of isomers formed in the free-radical methylation of pyridine and 3- and 4-picoline have been determined and the results compared with the corresponding phenylations. The results support the concept that methyl radicals are more nucleophilic than phenyl radicals.

scholarly journals The free radical polymerization of the vapours of certain vinyl derivatives

1946 ◽  
Vol 187 (1008) ◽  
pp. 37-53 ◽  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Vinyl Chloride ◽  
Free Radical Polymerization ◽  
Radical Mechanism ◽  
Methyl Radicals ◽  
Kinetic Methods ◽  
Free Radical Mechanism ◽  
Vinyl Derivatives ◽  
Styrene Butadiene

The free radical polymerization of the vapours of vinyl chloride, acrylic nitrile, styrene, butadiene and methyl isopropenyl ketone has been investigated using methyl radicals from photo-decomposing acetone. Although all the reactions do not exhibit ideal behaviour it is possible by the application of kinetic methods to measure the ratio of the propagation to the termination coefficients for these polymerization reactions. In this way relative values of the quantitative tendency for a molecule to polymerize by a free radical mechanism can be computed.

Vapor-phase Photochemistry of trans-Methyl Propenyl Ketone1,2

1958 ◽  
Vol 80 (6) ◽  
pp. 1304-1309 ◽  
Author(s):  
R. S. Tolberg ◽  
J. N. Pitts
Keyword(s):  
Vapor Phase ◽  
Trans Methyl

A VAPOR-PHASE FREE RADICAL ADDITION-ELIMINATION: REPLACEMENT OF ACETYL BY METHYL1

1954 ◽  
Vol 76 (10) ◽  
pp. 2843-2844 ◽  
Author(s):  
J. N. Pitts ◽  
R. S. Tolberg ◽  
T. W. Martin
Keyword(s):  
Free Radical ◽  
Vapor Phase ◽  
Radical Addition ◽  
Free Radical Addition

On the gas-phase free radical displacement reaction CH3 + CD3COCD3 ? CD3 + CH3COCD3

1980 ◽  
Vol 12 (9) ◽  
pp. 623-635 ◽  
Author(s):  
H. Knoll ◽  
Gislind Richter ◽  
R. Schliebs
Keyword(s):  
Free Radical ◽  
Gas Phase ◽  
Displacement Reaction
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