You limited your search to:

  Partner: UNT Libraries
 Degree Discipline: Chemistry
 Collection: UNT Theses and Dissertations
Preparation of Alkoxy Derivatives of 2-Chloro-1,4-Naphthoquinone and 2-Chloro-5(8?)- Nitro-1,4-Naphthoquinone

Preparation of Alkoxy Derivatives of 2-Chloro-1,4-Naphthoquinone and 2-Chloro-5(8?)- Nitro-1,4-Naphthoquinone

Date: June 1962
Creator: Hern, Kenneth T.
Description: This paper studies the the synthesis of certain alkoxy compounds of 2,3-dichloro-1,4-naphthoquinone that can be considered chemotherapeutic agents.
Contributing Partner: UNT Libraries
Preparation of flat dendrimers and polycyclic aromatic hydrocarbons connected via 1,3,5-triethynylbenzene core.

Preparation of flat dendrimers and polycyclic aromatic hydrocarbons connected via 1,3,5-triethynylbenzene core.

Date: December 2008
Creator: Jung, Jiyoung
Description: Flat dendrimers, consisting of a hexavalent aromatic core and rigid ethynyl units locked in place by ether connections were developed based upon the divergent synthetic method. Alternating functional groups were adopted on each site of the hexa-substituted benzene, in order to avoid undesired cyclization pathways. The flat structures of conjugated dendrimers would allow investigation on the discotic liquid crystal properties. In addition, these ethylnyl dendrimers are expected to show directed energy and electron transfer with a highly conjugated system, and thus are effective in the preparation of photoreactive materials such as electronic sensors or light harvesting materials. Conjugated polycyclic aromatic hydrocarbons, consisting of naphthalene, anthracene, pyrene, and phenanthrene groups connected via 1,3,5-triethynylbenzene cores, were synthesized. These molecules exhibited luminescence properties and the π-complexation with a mercury trifunctional lewis acid are expected to enhance the phosphorescence in the presence of the heavy metal due to the spin-orbit coupling. Besides, owing to the presence of heavy metal atom in the Au (I) complexes linked by s-bonded triethynyltriphenylene luminophore, the phosphorescence occurs from a metal-centered emission. The conjugated organic luminophores have been developed to produce excellent quantum efficiencies, brightness, and long lifetimes.
Contributing Partner: UNT Libraries
Preparation of N-Substituted Hydroxylamines from Oxaziridines

Preparation of N-Substituted Hydroxylamines from Oxaziridines

Date: January 1968
Creator: Truitt, Sharon G.
Description: In many series of compounds, intensity of biological activity and chemical reactivity are proportional. Generally whenever a alkyl group replaces a reactive hydrogen atom, as would be the case for an N-substituted hydroxylamine as compared to hydroxylamine, the over-all biological activity of the resulting compound is lower than that of its nonalkylated analogue. Since toxicity and physiological activity are not proportional, this comparison can only suggest possible types of derivatives to prepare and test.
Contributing Partner: UNT Libraries
The Preparation of Pyridinium Derivatives by the Knoevenagel Condensation

The Preparation of Pyridinium Derivatives by the Knoevenagel Condensation

Date: May 1955
Creator: Miller, Eugene James
Description: An attempt is made in the work described in this paper to extend the series started by Hall and Platas by means of a Knoevenagel condensation between 3-hydroxy-1,4-naphtho-quinone-2-(4-methylpyridinium) anhydride and various aromatic aldehydes giving rise to a series of unsaturated substituents on the four position of the pyridine ring.
Contributing Partner: UNT Libraries
Preparation of Pyridinium Derivatives of 2,3-Dichloro-5(8?)-Nitro-1,4-Naphthoquinone

Preparation of Pyridinium Derivatives of 2,3-Dichloro-5(8?)-Nitro-1,4-Naphthoquinone

Date: 1955
Creator: Mahon, Frank
Description: This paper describes the preparation of pyridine derivatives of 2,3-dichloro-5(8?)-nitro-1,4-naphthoquinone. A method for the nitration of 2,3-dichloro-1,4-naphthoquinone is also described. Certain 4-n-alkyl, 3,4-dialkyl, and 4-cycloalkyl pyridine derivatives are caused to undergo condensation reactions with the nitrated naphthoquinone, giving rise to a series of compounds of the preceding type (X). All of the compounds prepared will be tested for anti-tubercular activity by Parke-Davis and Company.
Contributing Partner: UNT Libraries
Preparation of Styrl Derivatives of 2,3-dimethyl-4,9-dioxo-1(2-propyl)-naphth[2,3-d]

Preparation of Styrl Derivatives of 2,3-dimethyl-4,9-dioxo-1(2-propyl)-naphth[2,3-d]

Date: June 1963
Creator: Hayes, David Wayne
Description: A series of compounds were prepared by condensing 2,3-dimethyl-4,9-dioxo-1-(2-propyl)-naphth[2,3-d] imidazolium iodide with various aromatic aldehydes.
Contributing Partner: UNT Libraries
Preparation of Various Amino Alcohol Derivatives of p-Chlorophenoxyacetic Acid and Phenylacetic Acid

Preparation of Various Amino Alcohol Derivatives of p-Chlorophenoxyacetic Acid and Phenylacetic Acid

Date: 1947
Creator: Richardson, Eugene E.
Description: This thesis deals with the preparation of dialkylaminoalkoxy derivatives of p-chlorophenoxyacetic acid and phenylacetic acid.
Contributing Partner: UNT Libraries
The Pure Rotational Spectra of Diatomics and Halogen-Addition Benzene Measured by Microwave and Radio Frequency Spectrometers

The Pure Rotational Spectra of Diatomics and Halogen-Addition Benzene Measured by Microwave and Radio Frequency Spectrometers

Date: August 2010
Creator: Etchison, Kerry C.
Description: Two aluminum spherical mirrors with radii of 203.2 mm and radii of curvature also of 203.2 mm have been used to construct a tunable Fabry-Perót type resonator operational at frequencies as low as 500 MHz. The resonator has been incorporated into a pulsed nozzle, Fourier transform, Balle-Flygare spectrometer. The spectrometer is of use in recording low J transitions of large asymmetric molecules where the spectra are often greatly simplified compared to higher frequency regions. The resonators use is illustrated by recording the rotational spectra of bromobenzene and iodobenzene. In related experiments, using similar equipment, the pure rotational spectra of four isotopomers of SrS and all three naturally occurring isotopomers of the actinide-containing compound thorium monoxide have been recorded between 6 and 26 GHz. The data have been thoroughly analyzed to produce information pertaining to bond lengths and electronic structures.
Contributing Partner: UNT Libraries
Pyridine Derivatives of Naphthoquinone

Pyridine Derivatives of Naphthoquinone

Date: August 1954
Creator: Platas, Oscar R.
Description: This paper deals with the preparation of pyridinium derivatives of naphthoquinone. The starting material was 2,3-dichloro-1,4-naphthoquinone, and it was reacted with pyridine and 4-n-alkyl-pyridine derivatives.
Contributing Partner: UNT Libraries
Pyridine-N-Oxide Derivatives of Naphthoquinone

Pyridine-N-Oxide Derivatives of Naphthoquinone

Date: 1955
Creator: Talbott, Ted Delwyn
Description: This thesis describes a series of pyridine-N-oxide derivatives of naphthoquinone that were prepared by the author. These compounds will be tested for medicinal activity by Parke-Davis and Company.
Contributing Partner: UNT Libraries