Access
Partner
Degree Discipline
8 Matching Results
Results open in a new window/tab.
Results:
1 - 8 of
8
Pyridine Derivatives of Naphthoquinone
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.
Date:
August 1954
Creator:
Platas, Oscar R.
System:
The UNT Digital Library
The Adsorption of Radioactive Isotopes on Specific Precipitates
The purpose of this investigation is to reveal the effects of certain factors affecting adsorption on some specific precipitates. It is hoped that the choice of precipitate types will enable extension of the information gained here to other precipitates similar to those investigated.
Date:
August 1954
Creator:
Yarbrough, Kenneth N.
System:
The UNT Digital Library
Barbituric Acids. VI. 5-substituted-mercapto Derivatives of 5-ethylbarbituric Acid
The reaction of 5-bromo-5-ethylbarbituric acid with mercaptan and pyridine in cold ether solution was studied and was found to be satisfactory for the preparation of the compounds reported in this work.
Date:
June 1954
Creator:
Jeanes, Cecil Byron
System:
The UNT Digital Library
The Adsorption of Radioactive Isotopes on Precipitates
This thesis concerns the investigation of radioisotopes as indicators for precipitation reactions. As a precipitate forms in the presence of a radioisotope, adsorption may take place on its surface. If this adsorption changes markedly at the stoichiometric point it will be possible to use this variation as an indicator for the reaction.
Date:
January 1954
Creator:
Bulloch, Newman Payne
System:
The UNT Digital Library
Hydantoins as Anticonvulsants. VIII. 5-Alkylmercapto Derivatives of 3-Methyl-5-Phenylhydantoin
Recent years have seen a rapid increase in the search for new compounds to be employed in the treatment of convulsions associated with epilepsy and related ailments. The properties desired are a higher degree of effectiveness and lower toxicity than those already in use. This thesis describes the effect of methylation of the 5-alkylmercapto-5-phenylhydantoins.
Date:
January 1954
Creator:
Dick, Clarence Reinhardt
System:
The UNT Digital Library
Hydantoins as Anticonvulsants. VI. 5-Substituted-Alkoxy Derivatives of 5-Phenylhydantoin
No derivatives of 5-phenylhydantoin with an oxygen atom attached directly in the five position of the hydantoin nucleus have been found in the literature. It was therefore considered of interest to synthesize a series of compounds of this type to determine the effect of the change of the position of the oxygen atom on anticonvulsant activity.
Date:
January 1954
Creator:
Hoffman, James Rucker
System:
The UNT Digital Library
Addition Reactions of Some Aromatic Aldazines
The paper explores the conclusion that the addition compound was bicyclic, and that the addition of each of the two moles of cyanic acid was dependent upon the other.
Date:
August 1954
Creator:
O'Dell, Stewart
System:
The UNT Digital Library
A Study of the Bromination Products of Phenylmercaptoacetic Acid
This investigation was begun in order to determine the nature of the 104 degree melting compound prepared by Ashmore and to determine which isomers and their relative amounts are produced during bromination of phenylmercaptoacetic acid.
Date:
August 1954
Creator:
Schimelpfenig, Clarence William
System:
The UNT Digital Library