Flavin-based photocatalysts [Elektronische Ressource] / vorgelegt von Jiří Svoboda

Jiri Svoboda

Informations

• Publié par: universitat_regensburg
• Publié le: 01 janvier 2008
• Nombre de lectures: 14
• Poids de l'ouvrage: 2 Mo

Extrait

Flavin-Based Photocatalysts
Dissertation
Zur Erlangung
des Doktorgrades der Naturwissenschaft
(Dr. rer. nat.)
an der Fakult¨at Chemie/Pharmazie
der Universit¨at Regensburg
vorgelegt von
Jiˇr´ıSvoboda
aus Prag
2007Flavin-Based PhotocatalystsPromotionsgesuch eingereicht am: 21. August 2007.
Promotionskolloquium: 11. September 2007.
Die Arbeit wurde angeleitet von: Prof. Dr. Burkhard K¨onig.
Prufung¨ sausschuss: Prof. Dr. J¨org Heilmann (Vorsitz),
Prof. Dr. Burkhard K¨onig (1. Gutachter),
Prof. Ivan Stibor, CSc. (2. Gutachter),
Prof. Dr. Ruth Gschwind (3. Prufe¨ r).
iiFlavin-Based Photocatalysts
Dissertation
Zur Erlangung des Doktorgrades der Naturwissenschaft
(Dr. rer. nat.)
an der Fakult¨at Chemie/Pharmazie
der Universit¨at Regensburg
vorgelegt von
Jiˇr´ıSvoboda
aus Prag
2007“Nothing is impossible, if you can imagine it. That’s
what being a scientist is all about.”
Prof.H.J.FarnsworthContents
1 Templated Photochemistry: Introduction 1
1 Introduction............................ 1
2 TemplatesContainingaShield......... 3
3 Photochemical Reactions in Non-Covalent Assemblies . . . . 12
4 ComplementaryDNAStrandsasTemplates.......... 2
5 Chromophore–RecognitionSiteTemplates....... 25
6 PhotochemicalReactionsinaMolecularFlask......... 30
7 Conclusion ........................ 44
8 NotesandReferences................... 4
2 2’-Oxoethyl Flavin Revisited 55
1 Introduction............................ 5
2 ResultsandDiscusion.............. 57
3 Conclusion ............................ 61
3 Thiourea-Enhanced Photooxidation 63
1 Introduction............................ 63
2 Synthesis ................. 64
3 CatalyticProperties....................... 72
4 Conclusion .................... 79
Summary 81
4 Experimental Procedures 83
1 General.............................. 83
2 Equilibration Experiments . . . . ........ 84
3 TheoreticalComputations.................... 84
4 KineticExperiments............... 84
5 CyclicVoltammetry....................... 85
6 2’-Oxoethyl Flavin (2).............. 86
7Flavin7 .............................. 87
8 2-Nitroaniline 11............. 88
9 Dinitrobenzene 13 ........................ 89
10 2-Nitroaniline 14 ................. 89
vii11 Compound 16........................... 90
12 Benzyl Carbamate 17 .............. 91
13 Trifluoroacetamide 18 ...................... 92
14 Flavin 21 ..................... 93
15 Flavin 22 ......................... 95
16 Flavin 23 ..................... 96
17 Flavin 26 ......................... 97
18 Flavin 27 ..................... 98
19 Flavin 28 ......................... 9
20 GeneralProcedure1...............10
21 Flavin 29 .............................10
22 Flavin 30 .................101
23 Flavin 31 .............................102
24 Flavin 32 .................103
25 GeneralProcedure2.......................104
26 Flavin 33 .....................104
27 Flavin 34 .........................105
28 Flavin 35 .....................106
29 Flavin 36 .........................107
30 GeneralProcedure3...............108
31 Flavin 37 .............................108
32 Flavin 38 .................109
33 Flavin 39 .............................10
34 Flavin 40 .................111
35 Flavin 41 .............................12
36 Flavin 42 .................13
37 Flavin 43 .............................14
38 Flavin 44 .................15
39 Flavin 45 .............................16
40 Bis-Flavin 46...............117
41 Bis-Flavin 47 ...........................18
5 Notes and References 119
A List of Abbreviations 127
viii