Browsing by Subject "Rearrangements"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
Item Photobenzidine rearrangement: photodecomposition of N.N'-dimethylhydrazoaromatics and 1,4-dialkyl-1,4-diphenyl-2-tetrazenes(Texas Tech University, 1973-12) Cheng, Jiin-DueyAcid-catalyzed and thermal rearrangements of hydrazoaromatics have been well documented; however, little is known about light-2 induced benzidine rearrangements^ Weiss reported that azobenzene and aniline were formed in the photolysis of an alcoholic solution of hydrazobenzene with a mercury lamp. Later, traces of rearrangement product, ortho- and para-semidines, were detected in the reaction fixture by paper chromatography. Recently, Shine and co-workers found that N,N'-dimethyl- -aminodiphenylamine can be isolated as the major product of irradiation of,N'-dimethylhydrazobenzene in cyclohexane. Part of the present work is to explore the scope and the mechanism of photobenzidine rearrangements of some N,N'-d1methyldrazoaromatics. The acid-catalyzed reactions of some of these substrates are also carried out for comparison.Item Synthetic and kinetic studies to determine the migration tendency of substituents in cationic rearrangement reactions(Texas Tech University, 1998-08) Kuhler, Jeanne LouiseNOT AVAILABLE