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
Addition Reactions of Some Aromatic Aldazines

Addition Reactions of Some Aromatic Aldazines

Date: August 1954
Creator: O'Dell, Stewart
Description: 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.
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
Synthesis and Infrared Spectra of Substituted Phthalimidines

Synthesis and Infrared Spectra of Substituted Phthalimidines

Date: June 1962
Creator: Reeves, Linda R.
Description: A number of N-substituted-3-hydroxy-3-phenylphthal-imidines and some of the isomeric amides have been prepared in order to study changes in the infrared spectra of these compounds due to structural changes in the molecule, particularly with reference to a hydroxyl band at 3.0µ and a carbonyl band at 5.75µ.
Contributing Partner: UNT Libraries
Bis Ammonium Salts of Dialkylaminoalkoxypropionitriles

Bis Ammonium Salts of Dialkylaminoalkoxypropionitriles

Date: August 1957
Creator: Woods, Roy Jack
Description: This paper concerns the preparation of some bis derivatives of dialkylaminoalkoxypropionitirles from trimethylene, hexamethylene, octomethylene, and decamethylene bromides. These compounds are to be tested for curariform activity and anesthetic values by Parke, Davis and Company.
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
Nitrogen Derivatives of Naphthoquinone

Nitrogen Derivatives of Naphthoquinone

Date: August 1952
Creator: Hall, Robert L.
Description: This thesis investigates nitrogen derivatives of naphthoquinone.
Contributing Partner: UNT Libraries
Synthesis of Selected 2-imidazolines

Synthesis of Selected 2-imidazolines

Date: June 1966
Creator: Maurer, Larry Eugene
Description: Since Djerassi and Scholz found that 2-(aryloxy-methyl)imidazolines and their hydrochloride salts exhibit vasoconstrictive properties, the 1,2-(I) 1,3-(II) and 1,4-bis-(2-imidazolinylmethoxy) benzene (III) analogs (Fig. 1, p.2) were chosen for synthesis in order to test them for their effective vasoconstrictive characteristics and for whatever other physiological properties they might exhibit.
Contributing Partner: UNT Libraries
The Synthesis of Benzo(d)pyrido(a)-benzimidazole-5,12-quinone

The Synthesis of Benzo(d)pyrido(a)-benzimidazole-5,12-quinone

Date: May 1955
Creator: Cooper, James Erwin
Description: The present investigation yielded an orange product upon refluxing 2-butyramido-3-chloro-1,4-naphthoquinone and 2-aminopyridine in ethanol. When this material was purified, by recrystallization from glacial acetic acid, the melting point was 306 [degrees]. This compound has been shown to be benzo(d)pyrido(a)-benzimidazole-5,12-quinone by the present investigation.
Contributing Partner: UNT Libraries
Preparation of 4-Amino-3-Hydrazino-5-Methyl-s-Triazole Dihydrochloride and Condensation Products

Preparation of 4-Amino-3-Hydrazino-5-Methyl-s-Triazole Dihydrochloride and Condensation Products

Date: August 1965
Creator: Westmoreland, Thomas D.
Description: The procedure of Takimoto, Denault, and Hotta was followed in order to prepare 4-amino-3-hydrazino-5-methyl-s-triazole hydrochloride (II) and its precursor, triamino-guanidine hydrochloride (I).
Contributing Partner: UNT Libraries
FIRST PREV 1 2 3 4 5 NEXT LAST