UNT Theses and Dissertations - 49 Matching Results

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Hydantoin Derivatives as Anticonvulsants. I. 5-Cyclohexylalkyl-5-(2-Thienyl)Hydantoins

Description: The study herein described represents a continuation of the work on 5-(2-thienyl)-5-substituted hydantoins which has been in progress in the laboratories of the North Texas State College for the past several years. It has for its purpose the study of the effect of lengthening the carbon chain connecting a cyclohexyl radical to 5-(2-thienyl)hydantoin in the 5- position.
Date: 1949
Creator: Baker, Andy Albert
Partner: UNT Libraries

A Chemical, Physical, and Biological Investigation of the Total Suspended and Dissolved Substances in Lake Dallas with Emphasis on Sanitation

Description: The purpose of this investigation is to determine the suspended organic matter and the total phosphorus in the waters of Lake Dallas and to evaluate these findings. Since organic matter floating in lakes is largely composed of minute plants, animals, and detritus derived from animals and plants, the fertilizing effect of phosphorus must be considered as an integral part of this problem.
Date: 1942
Creator: Eads, Ewin A.
Partner: UNT Libraries

The Syntheses of Amino Substituted Salicylic Acids and Related Compounds

Description: The introduction of the ether linkage into various compounds imparts physiological activity, hence the synthesis of various ether derivatives involving the phenol group seemed to be a possible route to tuberculostatic substances. The compounds reported in this work are to be tested for tuberculostatic properties by Parke, Davis and Company.
Date: 1949
Creator: Gerber, Martin
Partner: UNT Libraries

An Application of the Reformatsky Reaction to the Thiophene Series of Compounds

Description: In view of the increasing importance of thiophene derivatives as chemotherapeutic agents, it was considered of interest to apply the Reformatsky reaction to the synthesis of compounds containing the thiophene nucleus with the thought that these might serve as intermediates for further syntheses.
Date: 1949
Creator: Hicks, Howard A.
Partner: UNT Libraries

Determination of the Optimum Concentration of Sulfur Dioxide to be Used in Sweet Potato Dehydration

Description: The object of this paper is to determine the optimum concentration of sulfur dioxide to be used in the commercial dehydration of the sweet potato by this process. Attention has been given to two aspects of the problem, (1) the effect of sulfur dioxide upon the extraction of water from the sweet potato by mechanical means, and (2) the effect of sulfur dioxide upon the stability of the carotene in the sweet potato over a period of several months.
Date: 1941
Creator: Kearby, Howard Raymond
Partner: UNT Libraries

The Synthesis of Certain Alkyl Alpha-(2-Dialkylam Inoalkoxy)Phenylacetates

Description: This thesis describes the procedures used in preparation of the derivatives of certain alkyl phenylacetates and the necessary intermediate compounds. Compounds resembling the structure of Benadryl were prepared in this study in the hope that at least one might prove to be of value in the fight against allergy.
Date: 1947
Creator: Mark, Roscoe Dewey
Partner: UNT Libraries

Thiophene Analogs of DDT; O-Alkylhydorxylamine Hydrochorides; Dialkylaminoalkyl Esters of Phenoxyacetic Acid

Description: This thesis describes three separate and unrelated chemical experiments. The first investigates analogs for the compound DDT. The second investigates the properties of O-substituted hydroxylamines. The third investigates the action of slight changes to the structure of an antihistaminic agent.
Date: 1947
Creator: Mattison, Marjorie Bess
Partner: UNT Libraries