Index Catalog // ScholarsArchive@OSU

Hydrogen abstraction from 1-substituted adamantanes

Creator:: Owens, Peter Halliday
Abstract:: The relative rates of bridgehead hydrogen abstraction from a series of 1-substituted adamantanes by the trichloromethyl radical at 40.0°C. has been carried out. Utilizing the Hammett-Taft equation a p* value of -0.40 was obtained for this reaction. Application of the Kirkwood-Westheimer model for the transmission of substituent effects gave an...
Resource Type:: Masters Thesis

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

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

A study of the free radical addition of thiophenol to substituted a-methylstyrenes and vinylarenes

Creator:: Church, Daniel Frank
Resource Type:: Dissertation

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

Free-radical hydrogen abstraction from polycyclic aliphatic hydrocarbons

Creator:: Koch, Victor Raymond
Abstract:: Six polycyclic aliphatic hydrocarbons were reacted with the trichloromethyl radical photolytically generated from bromotrichloromethane at 40°. Relative rates of reaction were correlated with a computer analysis of the change in strain energy in going from the ground state to the intermediate. A good correlation between the log of the relative...
Resource Type:: Masters Thesis

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

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

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

Homolytic aromatic substitution : substituent effects in the radical trichloromethylation of 9-X-anthracenes

Creator:: Arnold, James Charles
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Hydrogen abstraction from 1-substituted adamantanes

Hydrogen abstraction from substituted t-butylbenzenes

Steric effects in free-radical hydrogen atom abstraction reactions

A study of the free radical addition of thiophenol to substituted a-methylstyrenes and vinylarenes

Hydrogen abstractions from arylmethanes

Free-radical hydrogen abstraction from polycyclic aliphatic hydrocarbons

Free radical hydrogen abstraction from benzocycloalkenes

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

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

Homolytic aromatic substitution : substituent effects in the radical trichloromethylation of 9-X-anthracenes

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