scholarly journals Solvent Effect on the Free Radical Phenylation with Phenylazotriphenylmethane

1973 ◽  
Vol 46 (2) ◽  
pp. 546-550 ◽  
Author(s):  
Michio Kobayashi ◽  
Hiroshi Minato ◽  
Nobuko Watanabe
Keyword(s):  
Free Radical ◽  
Solvent Effect ◽  
Radical Phenylation

Free-Radical Phenylation of Ferricenium Ion

1964 ◽  
Vol 86 (5) ◽  
pp. 952-953 ◽  
Author(s):  
A. L. J. Beckwith ◽  
R. J. Leydon
Keyword(s):  
Free Radical ◽  
Radical Phenylation

Reactions of aryl diazonium salts and alkyl arylazo ethers. XI. Further evidence for the mechanism of dediazoniation in basic alcoholic solution

1983 ◽  
Vol 36 (5) ◽  
pp. 1031 ◽  
Author(s):  
TJ Broxton ◽  
MJ Mcleish
Keyword(s):  
Free Radical ◽  
Nitrogen Atom ◽  
Solvent Effect ◽  
Alcoholic Solution ◽  
Diazonium Salts ◽  
Hydride Abstraction ◽  
Terminal Nitrogen Atom ◽  
Methoxide Ion ◽  
Diazonium Ion

A comparison of the relative amounts of dediazoniation, SNAr and aryne reactions of 4-chloro-3- nitrobenzenediazonium ion with methoxide ion in CH3OH and in CD3OH confirms that the dediazoniation reaction involves hydride abstraction from the alkoxide ion by the electrophilic terminal nitrogen atom of the diazonium ion. Furthermore, the relative amounts of anionic and free-radical dediazoniation are the same in CH3OH and in CD3OH. This confirms that the partitioning between the free-radical and anionic pathways for dediazoniation is on the aryl diimide and not on the free diazonium ion. Some previously reported results on the solvent effect (methanol against ethanol) for the reaction have been reinterpreted in the light of the above conclusions.

scholarly journals The free-radical phenylation of isoquinolinium cation

1982 ◽  
Vol 35 (10) ◽  
pp. 2179 ◽  
Author(s):  
AJ Beveridge ◽  
LK Dyall
Keyword(s):  
Free Radical ◽  
Acid Solution ◽  
Trifluoroacetic Acid ◽  
Theoretical Predictions ◽  
Radical Phenylation

Free-radical phenylation of isoquinolinium cation has been effected by photolysis of phenylthalliurn(III)di(trifluoroacetate) in a trifluoroacetic acid solution of isoquinoline. Analysis (g.l.c. and h.p.l.c.) of the isomeric phenylisoquinoline mixture showed that the dominant product (81.1 %) was 1-phenylisoquinoline, in accordance with two published theoretical predictions.

The Relative Reactivities of the Seven Nuclear Positions of Isoquinoline to Free-Radical Phenylation

1979 ◽  
Vol 32 (2) ◽  
pp. 345 ◽  
Author(s):  
LK Dyall ◽  
CJ Pullin
Keyword(s):  
Free Radical ◽  
Theoretical Predictions ◽  
Radical Phenylation ◽  
Reactivity Order

Free-radical phenylation of isoquinoline has been effected both by photolysis of phenylthallium(III) di(trifluoroacetate) and by the action of pentyl nitrite on aniline. Analysis of the isomeric phenyl isoquinoline mixture by g.l.c. and h.p.l.c. established the reactivity order in the isoquinoline nucleus to be 1 > 5 > 8 > 4 > 3,6,7. This experimental order is compared with the eight published theoretical predictions, none of which is correct.

Direct Dynamics for Free Radical Kinetics in Solution:  Solvent Effect on the Rate Constant for the Reaction of Methanol with Atomic Hydrogen

1999 ◽  
Vol 103 (25) ◽  
pp. 4893-4909 ◽  
Author(s):  
Yao-Yuan Chuang ◽  
Mala L. Radhakrishnan ◽  
Patton L. Fast ◽  
Christopher J. Cramer ◽  
Donald G. Truhlar
Keyword(s):  
Free Radical ◽  
Solvent Effect ◽  
Rate Constant ◽  
Atomic Hydrogen ◽  
Direct Dynamics
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