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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 邱靜雯 | zh_TW |
| dc.contributor.advisor | Ching-Wen Chiu | en |
| dc.contributor.author | 顏碩霆 | zh_TW |
| dc.contributor.author | Shuo-Ting Yan | en |
| dc.date.accessioned | 2024-01-26T16:18:09Z | - |
| dc.date.available | 2024-01-27 | - |
| dc.date.copyright | 2024-01-26 | - |
| dc.date.issued | 2024 | - |
| dc.date.submitted | 2024-01-10 | - |
| dc.identifier.citation | 1. Ma, Y.; Wang, B.; Zhang, L.; Hou, Z. Boron-Catalyzed Aromatic C–H Bond Silylation with Hydrosilanes. J. Am. Chem. Soc. 2016, 138, 3663–3666.
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C.; Wartig, H. B.; Schimmel, M.; Boese, R.; Bläser, D. Reaction of 2,3-Dihydro-1H-1,3,2-diazaboroles and Diphenylketene: A Novel Synthesis of 1,3,2-Oxazaborolidines. Organometallics 2000, 19, 5791–5794. 77. Barnard, J. H.; Yruegas, S.; Huang, K.; Martin, C. D. Ring Expansion Reactions of Anti-Aromatic Boroles: A Promising Synthetic Avenue to Unsaturated Boracycles. Chem. Commun. 2016, 52, 9985–9991. 78. Kuhn, N.; Kratz, T. Synthesis of Imidazol-2-ylidenes by Reduction of Imidazole-2(3H)-thiones. Synthesis 1993, 1993, 561–562. 79. Lavallo, V.; Canac, Y.; Präsang, C.; Donnadieu, B.; Bertrand, G. Stable Cyclic (Alkyl)(Amino)Carbenes as Rigid or Flexible, Bulky, Electron-Rich Ligands for Transition–Metal Catalysts: A Quaternary Carbon Atom Makes the Difference. Angew. Chem. Int. Ed. 2005, 44, 5705–5709. | - |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/91392 | - |
| dc.description.abstract | 具有non-innocent配基的過渡金屬錯合物在化學鍵的活化與催化反應中有許多應用的例子，近年來也有許多將主族元素引入non-innocent配基體系的文獻報導。然而，由三配位有機硼化物和non-innocent配基衍生的路易士酸卻很少被研究。我們認為或許可以結合天生缺電子的硼原子與non-innocent配基，藉由硼原子－配基協同作用來進行化學鍵的活化，並將此反應應用於化學合成上。因此，本研究工作闡述了由non-innocent配基與碳烯穩定的硼陽離子的合成，以及硼陽離子與硼烷氨、苯甲醛和還原劑之間的反應性測試。其中，我們發現含氮雜環碳烯穩定的硼陽離子與硼烷氨的反應產生了氫化硼陽離子以及環硼氮烷。此外，我們還觀察到含氮雜環碳烯穩定的硼陽離子會與苯甲醛進行1,2-碳硼化反應，形成含氮雜環碳烯穩定的惡唑硼烷陽離子。最後，在對含氮雜環碳烯及環烷基氨基碳烯穩定的硼陽離子進行還原後，相關的EPR訊號也被偵測到，不過自由基產物的結構仍在鑑定當中。 | zh_TW |
| dc.description.abstract | Non-innocent ligand supported transition metal complexes have found numerous applications in bond activation and catalysis. In recent years, the incorporation of main-group element into the non-innocent ligand system has also emerged. However, Lewis acids derived from the combination of tri-coordinate organoboron and non-innocent ligand were much less explored. As the combination of non-innocent ligand with highly electron deficient boron atom may be beneficial for synthetic application through heterolytic boron-ligand cooperative bond activation. Accordingly, synthetic plans of non-innocent ligand and carbenes supported boron cations are reported in this work. Reactivities of borenium with ammonia-borane, benzaldehyde, and reductant are also examined. The reaction of IMe4-borenium with ammonia-borane leads to the generation of hydrido-boronium and borazine. Additionally, we observed the 1,2-carboboration of benzaldehyde with IMe4-borenium, resulting in the formation of an IMe4-coordinated oxazaborolidinium. Furthermore, we detected EPR signals upon treatment of NHC- and cAAC-boreniums with reductants. The structures of the resulting radical species are still under investigation. | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2024-01-26T16:18:09Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2024-01-26T16:18:09Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | 口試委員會審定書
誌謝 i 摘要 ii ABSTRACT iii CONTENTS iv LIST OF FIGURES vi LIST OF SCHEMES xiv LIST OF TABLES xvi Chapter 1 Introduction 1 1.1 Boron Lewis acids 1 1.2 Bond activation by metal–ligand cooperation 2 1.2.1 Non-innocent ligand 2 1.2.2 Transition metal–ligand cooperation 4 1.2.3 s-Block and p-block element–ligand cooperation 5 1.2.4 Boron–ligand cooperation 8 1.3 Boron cations 10 1.4 Molecular design 14 Chapter 2 Results and Discussion 16 2.1 Synthesis and characterization of borenium 16 2.1.1 Route A: from pyridine-amine ligand and BCl3 17 2.1.2 Route B: via boron–tin exchange reaction 19 2.1.3 Route C: from pyridine-imine ligand and BBr3 20 2.2 Reactivity study of borenium 29 2.2.1 Lewis acidity of borenium ions 29 2.2.2 Transfer hydrogenation of borenium 31 2.2.3 1,2-Carboboration of benzaldehyde with borenium 37 2.2.4 Reduction of borenium 41 Chapter 3 Conclusion 47 Chapter 4 Experimental Section 48 4.1 General Consideration 48 4.2 Synthesis of Compounds 49 REFERENCE 71 APPENDIX 81 Crystal data 81 NMR spectra 106 Theoretical calculations 196 | - |
| dc.language.iso | en | - |
| dc.subject | 路易士酸 | zh_TW |
| dc.subject | non-innocent配基 | zh_TW |
| dc.subject | 硼陽離子 | zh_TW |
| dc.subject | 硼烷氨脫氫反應 | zh_TW |
| dc.subject | 硼自由基 | zh_TW |
| dc.subject | boryl radicals | en |
| dc.subject | non-innocent ligand | en |
| dc.subject | Lewis acid | en |
| dc.subject | boron cations | en |
| dc.subject | dehydrogenation of ammonia-borane | en |
| dc.title | 具Non-Innocent配基之硼路易士酸 | zh_TW |
| dc.title | Non-Innocent Ligand Supported Boron Lewis Acids | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 112-1 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.oralexamcommittee | 王華冬;方頡睿 | zh_TW |
| dc.contributor.oralexamcommittee | Huadong Wang;Jeffrey M. Farrell | en |
| dc.subject.keyword | non-innocent配基,路易士酸,硼陽離子,硼烷氨脫氫反應,硼自由基, | zh_TW |
| dc.subject.keyword | non-innocent ligand,Lewis acid,boron cations,dehydrogenation of ammonia-borane,boryl radicals, | en |
| dc.relation.page | 226 | - |
| dc.identifier.doi | 10.6342/NTU202400052 | - |
| dc.rights.note | 同意授權(限校園內公開) | - |
| dc.date.accepted | 2024-01-11 | - |
| dc.contributor.author-college | 理學院 | - |
| dc.contributor.author-dept | 化學系 | - |
| dc.date.embargo-lift | 2029-01-10 | - |
| 顯示於系所單位： | 化學系 | |
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