Well-defined Al-containing Lewis acids for organic transformations
This thesis focuses on designing and catalytic applications of aluminum based Lewis acids. It contains four parts: Chapter 1 gives a brief introduction of the development of Lewis acid chemistry and its increasing influence on modern synthetic organic chemistry. Aluminum compounds are widely used as...
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
2016
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| Online Access: | https://hdl.handle.net/10356/69303 |
| _version_ | 1811682425220104192 |
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| author | Liu, Zhizhou |
| author2 | Dragoslav Vidovic |
| author_facet | Dragoslav Vidovic Liu, Zhizhou |
| author_sort | Liu, Zhizhou |
| collection | NTU |
| description | This thesis focuses on designing and catalytic applications of aluminum based Lewis acids. It contains four parts:
Chapter 1 gives a brief introduction of the development of Lewis acid chemistry and its increasing influence on modern synthetic organic chemistry. Aluminum compounds are widely used as efficient and powerful Lewis acid catalysts. Hence, we proposed our strategy to prepare various Al-based Lewis acids and investigate their potential applications.
Chapter 2 describes the design, synthesis and characterization of a series of aluminum bistriflate complexes supported by β-diketiminate ligands. Several approaches to cationic aluminum complexes were also illustrated in this chapter.
Chapter 3 focuses on the catalytic application of these aluminum bistriflate complexes on Diels-Alder transformations. Less reactive dienes such as 2,3-dimethylbutadiene, 1,3-cyclohexadiene and isoprene and a series of dienophiles were examined. A competition between Diels-Alder reaction and Michael polymerization was also described when cyclic dienophiles were used.
Chapter 4 describes the synthesis of several aluminum compounds stabilized by an NCN pincer ligand. Several experiments indicated that the cationic aluminum complex 50 was the active species for Diels-Alder catalytic reactions. |
| first_indexed | 2024-10-01T03:56:38Z |
| format | Thesis |
| id | ntu-10356/69303 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:56:38Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/693032023-02-28T23:38:16Z Well-defined Al-containing Lewis acids for organic transformations Liu, Zhizhou Dragoslav Vidovic School of Physical and Mathematical Sciences DRNTU::Science::Chemistry::Organic chemistry::Organometallic compounds This thesis focuses on designing and catalytic applications of aluminum based Lewis acids. It contains four parts: Chapter 1 gives a brief introduction of the development of Lewis acid chemistry and its increasing influence on modern synthetic organic chemistry. Aluminum compounds are widely used as efficient and powerful Lewis acid catalysts. Hence, we proposed our strategy to prepare various Al-based Lewis acids and investigate their potential applications. Chapter 2 describes the design, synthesis and characterization of a series of aluminum bistriflate complexes supported by β-diketiminate ligands. Several approaches to cationic aluminum complexes were also illustrated in this chapter. Chapter 3 focuses on the catalytic application of these aluminum bistriflate complexes on Diels-Alder transformations. Less reactive dienes such as 2,3-dimethylbutadiene, 1,3-cyclohexadiene and isoprene and a series of dienophiles were examined. A competition between Diels-Alder reaction and Michael polymerization was also described when cyclic dienophiles were used. Chapter 4 describes the synthesis of several aluminum compounds stabilized by an NCN pincer ligand. Several experiments indicated that the cationic aluminum complex 50 was the active species for Diels-Alder catalytic reactions. DOCTOR OF PHILOSOPHY (SPMS) 2016-12-12T08:38:04Z 2016-12-12T08:38:04Z 2016 Thesis Liu, Z. (2016). Well-defined Al-containing Lewis acids for organic transformations. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/69303 10.32657/10356/69303 en 159 p. application/pdf |
| spellingShingle | DRNTU::Science::Chemistry::Organic chemistry::Organometallic compounds Liu, Zhizhou Well-defined Al-containing Lewis acids for organic transformations |
| title | Well-defined Al-containing Lewis acids for organic transformations |
| title_full | Well-defined Al-containing Lewis acids for organic transformations |
| title_fullStr | Well-defined Al-containing Lewis acids for organic transformations |
| title_full_unstemmed | Well-defined Al-containing Lewis acids for organic transformations |
| title_short | Well-defined Al-containing Lewis acids for organic transformations |
| title_sort | well defined al containing lewis acids for organic transformations |
| topic | DRNTU::Science::Chemistry::Organic chemistry::Organometallic compounds |
| url | https://hdl.handle.net/10356/69303 |
| work_keys_str_mv | AT liuzhizhou welldefinedalcontaininglewisacidsfororganictransformations |