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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the 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 1 to 3 of 3 (0.069 seconds)

Spelling suggestions: "subject:"flavin salt"" "subject:"flavine salt""

1

Využití flaviniových solí jako katalyzátorů oxidačních reakcí / Flavinium Salts Usage as Catalysts of Oxidation Reactions

Strnadová, Iveta January 2013 (has links)
Usage of Flavinium Salts as Catalysts of Oxidation Reactions Summary This diploma thesis deals with use of flavinium salts as a catalysts of oxidation reactions. 3,7,8,10-tetramethylisoalloxazin 25, 5-ethyl-3,7,8,10-tetramethylisoalloxazinium perchlorate 16 and 5-ethyl-1,3-dimethylalloxazinium perchlorate 26 had been prepared. Salts 16, 26 and other previously prepared phlavinium salt 28 were tested as potential catalysts for the oxidation of phenylboronic acids to the corresponding phenols, and especially for the use of oxygen as the oxidizing agent. The best solvent systems were found through testing and followed possible influence of the substituent on the phenyl ring of boronic acid was investigated. This initial screening can be used as a basis for further and more detailed testing of catalytic efficiency of flavinium salts and to study the oxidation mechanism.
2

Ověření reaktivity flaviniových solí s N- a O-nukleofily pro případnou transformaci boronových kyselin na odpovídající aminy / Verification of flavinium salts reactivity with N- and O-nucleophiles for eventual transformation of boronic acids to corresponding amines

Honskusová, Linda January 2017 (has links)
Presented diploma thesis follows the long-term study running at the Department of Organic Chemistry at the University of Chemistry and Technology Prague in the field of using flavinium salts as catalysts of oxidation reactions. The aim was to verify the reactivity of flavinium salt 13 with different types of O- and N-nucleophiles by monitoring of the corresponding C4a-adducts formation. In the thesis a simple alloxazinium salt 13 and one of the nucleophiles (hydroxylamine 25) were prepared. According to the results obtained from the UV-VIS measurements nucleophile 25 is the only one of the newly tested wchich formed desired C4a-adduct 13d with alloxazinium salt 13. KEYWORDS flavinium salt, nucleophile, C4a-adduct, organocatalysis, IBSE
3

Flavins and Their Analogues as Natural and Artificial Catalysts

Sichula, Vincent A. 02 March 2011 (has links)
No description available.
Alternative Energy
Chemistry
Organic Chemistry
Physical Chemistry
Flavins
flavoenzymes
cyclobutane thymidine dimer
DNA photolyase
flavins analogues
flavinium salt
water oxidation
ethyl-flavinium perchlorate

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