Contents
Chapter 1
Introduction1.1 General introduction 1
1.2 Aromaticity 4
1.3 Reduction and reductive alkylation of PAHs 8
1.4 Acenaphthylene 10
1.5 Purpose of this investigation 12
1.6 References 13
Part I Reductive alkylation of acenaphthylene
Chapter 2
The acenaphthylene dianion and 5-hydroacenaphthylene anion2.1 Introduction 21
2.2 Results 21
2.2.1 Reactions with electrophiles 21 2.2.2 1H and 13C NMR spectroscopy 22 2.2.3 Ab initio calculations 26
2.3 Discussion 27
2.4 Conclusions 29
2.5 Experimental section 30
2.6 References 32
Chapter 3
Reactivity of the 5-hydroacenaphthylene anion towards alkyl bromides3.1 Introduction 35
3.2 Results 35
3.3 1H and 13C NMR spectroscopy 37
3.4 Discussion 38
3.5 Conclusions 41
3.6 Experimental section 41
3.7 References 46
Chapter 4
Reactivity of the 5-hydroacenaphthylene anion towards electrophiles:single electron transfer vs. SN2
4.1 Introduction 47
4.2 Results 47
4.3 1H and 13C NMR spectroscopy 49
4.4 Discussion 50
4.5 Conclusions 54
4.6 Experimental section 55
4.7 References 60
Chapter 5
Reactivity of the 5-hydroacenaphthylene anion towards electrophiles containing an additional functional group5.1 Introduction 61
5.2 Results and discussion 62
5.3 Conclusions 67
5.4 Experimental section 67
5.5 References 72
Chapter 6
Reactions of the acenaphthylene dianion6.1 Introduction 73
6.2 Results 73
6.3 Discussion 75
6.4 Conclusions 79
6.5 Experimental section 80
6.6 References 84
Part II Reduction of substituted acenaphthylenes
Chapter 7
Synthesis, reduction and electrochemistry of substituted acenaphthylenes7.1 Introduction 87
7.2 Results and discussion 88 7.2.1 Synthesis of 1- and 5-substituted acenaphthylenes 88 7.2.2 Reduction of 1- and 5-substituted acenaphthylenes 90
7.2.3 Cyclic voltammetry 92
7.3 Conclusions 95
7.4 Experimental section 96
7.5 References 104
Chapter 8
Substituent induced perturbation of the charge distribution in acenaphthylene anions: the cyano group8.1 Introduction 105
8.2 Results 105
8.2.1 Reductive methylation 105 8.2.2 1H and 13C NMR spectroscopy 107
8.2.3 Quantum chemical calculations 110
8.3 Discussion 114
8.4 Conclusions 119
8.5 Experimental section 120
8.6 References 126
Chapter 9
Some effects of the methyl group on the acenaphthylene dianion9.1 Introduction 127
9.2 Results and discussion 127
9.2.1 1-Methylacenaphthylene 127 9.2.2 5-Methylacenaphthylene 130
9.3 Conclusions 133
9.4 Experimental section 134
9.5 References 136