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Part I. The identity of the chain propagating radical(s) in photoinitiated benzylic bromination by bromotrichloromethane ; Part II. Chlorine atom abstraction from α- and β-chloroepoxides by the triphenyltin radical

Creator:: Krosley, Kevin W.
Resource Type:: Dissertation
Full Text:: Part I. The identity of the chain propagating radical(s

Free radical hydrogen abstraction from benzocycloalkenes

Creator:: Wong, Rosy Wan-han
Abstract:: The relative rates of hydrogen abstraction from o-xylene, o-diethylbenzene and a series of four benzocycloalkenes by trichloromethyl radical were determined at 70°. The strain energies of the hydrocarbons and the corresponding radicals were calculated. A good correlation between the log of the relative rates and the calculated changes in strain...
Resource Type:: Masters Thesis
Full Text:: of the cyclenes reported by Russell and Desmond is: cycloheptene > cyclopentene > cyclohexene (10

Substituent effects in hydrogen abstraction by trichloromethyl radical from 10-substituted-9-methylanthracenes : a linear free energy study

Creator:: Nolan, Gary Scott
Resource Type:: Masters Thesis
Full Text:: etylanthr ac ene 40 9 -methyl -10 -phenylanthr acene 40 9-methyl -10 -haloa nthrac ene s 41 C. Kinetic

Hydrogen abstraction from substituted t-butylbenzenes

Creator:: Harvey, Robert Louis
Abstract:: A study of the relative rates of the alkyl hydrogen abstraction from a series of meta and para substituted t-butylbenzenes by the chlorine atom at 70°C has been carried out. Application of the Hammett equation yielded a ρ value of -0.44 for the para compounds. Possible explanations for the non-linearity...
Resource Type:: Masters Thesis
Full Text:: and relative rates of hydrogen abstraction by bromine atom of various a- s ub- stituted and q a

Hydrogen abstractions from arylmethanes

Creator:: Unruh, Jerry Dean
Abstract:: The relative rates of hydrogen abstraction from a series of 13 arylmethanes by the trichloromethyl radical were determined at 70°. The attacking radical was generated from bromotrichloromethane us ing benzoyl peroxide as the initiator. The solvent was benzenebromotrichloromethane. An excellent correlation, with a coefficient of 0.977, was obtained when the...
Resource Type:: Dissertation
Full Text:: the transition state (4). The relative importance of resonance can be illustrated. Russell and Brown

Hydrogen atom abstraction from saturated cyclic ethers and sulfides

Creator:: Hallen, Richard Thomas
Resource Type:: Masters Thesis
Full Text:: faster than the corresponding ethers, was in the order C4H8S > C 5 H 10 S > C6H12S. This would imply

Steric effects in hydrogen abstraction : the reaction of a-alkyltoluenes and a, a-dialkyltoluenes with the trichloromethyl radical

Creator:: Eghdami, Kombiz Oskui
Resource Type:: Masters Thesis
Full Text:: , 3129 (1963). 43. E. S. Huyser, ibid., 82, 394 (1960). 44. G. A. Russell, ibid., 78, 1047 (1956). 45

An evaluation of charge generation in hydrogen atom abstraction processes: the reaction of homoaryl and heteroarylmethanes with t-butoxy radical

Creator:: Mahiou, Belaid
Abstract:: The relative rates of hydrogen atom abstraction from a series of 13 homoaryl and heteroarylmethanes by t-butoxy radical were determined at 70°C. The attacking radical was photochemically generated from di-t-butyl peroxide. A relatively small range of relative rates (factor of seven) has been found among the compounds studied. The relative...
Resource Type:: Masters Thesis
Full Text:: advanced in the transition state (8). This can be illus- trated by the following example. Russell and

Steric effects in free-radical hydrogen atom abstraction reactions

Creator:: Totherow, William D.
Abstract:: A study of the relative rates of benzylic hydrogen abstractions from a series of meta and para substituted neopentylbenzenes by the bromine radical and trichloromethyl radical at 70°C has been carried out. Application of the Hammett equation yields p values of -0.75 for the bromine atom and -0.94 for the...
Resource Type:: Masters Thesis
Full Text:: MASTER OF SCIENCE (Name) (Degree) in CHEMISTRY (Major) presented on 6' / )S-2) /q69 Gate 9 Title

Intramolecular transfer of complexed radicals as a possible explanation for long-range substituent effects observed in hydrogen abstraction reactions

Creator:: Newkirk, David Dudley
Abstract:: The relative rates of hydrogen abstraction from 1-phenylalkanes and a,w-diphenylalkanes using N-bromosuccinimide and bromotrichloromethane were determined at 70°C. In both cases the reactions were photoinitiated. Only benzylic bromination was observed. The 1-phenylalkanes reacted with both reagents to give rates largely independent of substrate. Similarly, the rate of the reaction between...
Resource Type:: Dissertation
Full Text:: ....H.. X T. S. Exothermic T. S. Endothermic R -H X RH-X Reaction coordinate Figure 1. The Hammond

ScholarsArchive@OSU

Part I. The identity of the chain propagating radical(s) in photoinitiated benzylic bromination by bromotrichloromethane ; Part II. Chlorine atom abstraction from α- and β-chloroepoxides by the triphenyltin radical

Free radical hydrogen abstraction from benzocycloalkenes

Substituent effects in hydrogen abstraction by trichloromethyl radical from 10-substituted-9-methylanthracenes : a linear free energy study

Hydrogen abstraction from substituted t-butylbenzenes

Hydrogen abstractions from arylmethanes

Hydrogen atom abstraction from saturated cyclic ethers and sulfides

Steric effects in hydrogen abstraction : the reaction of a-alkyltoluenes and a, a-dialkyltoluenes with the trichloromethyl radical

An evaluation of charge generation in hydrogen atom abstraction processes: the reaction of homoaryl and heteroarylmethanes with t-butoxy radical

Steric effects in free-radical hydrogen atom abstraction reactions

Intramolecular transfer of complexed radicals as a possible explanation for long-range substituent effects observed in hydrogen abstraction reactions

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