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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 41 to 50 of 113 (0.012 seconds)Spelling suggestions: "subject:"diazo"" "subject:"iazo""
| 41 |
The influence of hydrogen ion concentration on the reaction of diazonium salts in ethanolZolton, Lorraine, 1935- January 1960 (has links)
No description available.
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| 42 |
Concerning the nature of the diazene-hydrazone rearrangementLichter, Robert L. January 1967 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1967. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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| 43 |
Some substitution reactions of arylated aza-heterocyclesJavaid, Khalid January 1984 (has links)
The nitration of 2,5-diphenyl-1,3,4-thiadiazole is investigated and the results are compared with the nitration results of 2,5-diphenyl-1,3,4-oxadiazole. The variation of isomer ratios with variation in nitration media occurs in the thiadiazole series, but not to the extent it occurs in the oxadiazole series. As the nitrating agent is changed from nitric acid alone to nitric acid in sulphuric acid, and then to nitronium tetrafluoroborate, the proportion of meta-nitrated products increases at the expense of para-nitrated compounds. The significance of these results, and those in other related phenyl heterocycles, are discussed. The attempted monobromination of 2-phenyl-5-(p-nitrophenyl)-1,3,4-oxadiazole is described. Previous attempts always resulted in polybromination of the phenyl ring. We were able to restrict the reaction to dibromination, the first bromine entering the ring in all the three positions in the ratio of ortho:meta:para = 28.5: 28.5: 43. The second bromine entering was ortho or para to the first bromine already present in the phenyl ring. Synthesis of (1,3,4-oxadiazole-2,5-diyl)dibenzoic acids and thiadiazole analogues of these acids is undertaken by oxidation of the corresponding ditolyl-oxadiazoles and -thiadiazoles. Previously described routes to these acids (some of them patented procedures) did not give satisfactory yields.
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| 44 |
Reatividade de 1-azirinas-3-acrilatos frente a -diazo centonas e difenil cetenoBrandão, Fernando 21 July 2018 (has links)
Orientador: Albert James Kascheres / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica / Made available in DSpace on 2018-07-21T18:24:27Z (GMT). No. of bitstreams: 1
Brandao_Fernando_M.pdf: 6035616 bytes, checksum: ee9527606b80b0c18bc8fd3ed3163589 (MD5)
Previous issue date: 1995 / Mestrado
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| 45 |
Estudo da reatividade de diazoquinonas frente a enaminonas : obtenção de azo-compostos com potencial em optica não-linearFigueiredo, Luciana Jansen de Oliveira 20 July 2018 (has links)
Orientador: Concetta Kascheres / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica / Made available in DSpace on 2018-07-20T18:03:21Z (GMT). No. of bitstreams: 1
Figueiredo_LucianaJansendeOliveira_D.pdf: 3846694 bytes, checksum: 53880dd08682b26e037f5c580d012dc7 (MD5)
Previous issue date: 1995 / Doutorado
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| 46 |
The synthesis and Wolff rearrangement of some diazoindanones /Litle, Robert Lloyd. January 1957 (has links)
No description available.
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| 47 |
Substituent effects on the unimolecular decompostion of 10-diazoanthrones /Utz, Christopher G. January 1985 (has links)
No description available.
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| 48 |
The temperature dependent photochemistry of aryl azides and aryl diazo compounds /Leyva-Ramos, Elisa January 1986 (has links)
No description available.
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| 49 |
The synthesis, properties and reactions of steroidal α-oximino and diazoketones /Glamkowski, Edward Joseph January 1963 (has links)
No description available.
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| 50 |
The synthesis, properties, and reactions of several steroidal [alpha]-omimino- and [alpha]-diazoketones /Weintraub, Philip Marvin January 1964 (has links)
No description available.
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