Study of Synthesis, Characterization and Reactivity of Fluorenyl Aluminum(III) Complexes
碩士 === 國立交通大學 === 應用化學系碩博士班 === 107 === The motivation of this research is to synthesize the low-valent aluminum complexes supported by 2,7-di-tert-butyl-9H-fluorenyl ligand. FluoAlCl2(OEt2) (2, Fluo=ditbutylfluorenyl) was first synthesized then reduced by KC8 (potassium graphite) to form Fluo2AlCl(...
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ndltd-TW-107NCTU55000322019-05-16T01:40:47Z http://ndltd.ncl.edu.tw/handle/c964q8 Study of Synthesis, Characterization and Reactivity of Fluorenyl Aluminum(III) Complexes 芴衍生鋁三價錯合物之合成,鑑定及其反應性研究 Hwang, Robin Christine 黃珞蕎 碩士 國立交通大學 應用化學系碩博士班 107 The motivation of this research is to synthesize the low-valent aluminum complexes supported by 2,7-di-tert-butyl-9H-fluorenyl ligand. FluoAlCl2(OEt2) (2, Fluo=ditbutylfluorenyl) was first synthesized then reduced by KC8 (potassium graphite) to form Fluo2AlCl(OEt2) (3), [Fluo3AlKCl(OEt2)] (4) and Fluo3Al(OEt2) (5). Another strategy was taken to synthesize a group of tris-fluorenyl ligands: H3L1 and H3L2. Numerous amides were mixed with 2 to form FluoAlCl(N(SiMe3)2)(THF) (6) FluoAl(N(SiMe3)2)2 (7), FluoAlCl(NiPr2)(OEt2) (8) and FluoAl(NHDipp)2(OEt2) (9). Bulky NHC (N-heterocyclic) carbene like IMes (1,3-bis(2,4,6 trimethylphenyl)imidazolylidene) and IPr (1,3-Bis-(2,6-diisopropylphenyl)imidazole-ylidene) were also mixed with 2 to form FluoAl(IMes)Cl2 (10) and FluoAl(IPr)Cl2 (11). FluoAlH2(OEt2) (12) was formed by mixing 3 with one equiv. of LAH (lithium aluminum hydride). FluoAl(dmap)H2 (13, dmap = 4-dimethylaminopyridine) was then synthesized by mixing 12 with one equiv. of dmap. Reduction of 6, 7, 8 and 9 using KC8 resulted in a group of unclean spectra. KFluo, the potassium salt and an unidentified Al(NHC) species were found after the KC8 reduction of 10 and 11. 13 tended to release free ditbutylfluorene (1) upon heating, likely resulting from reductive elimination at Al center. Liu, Hsueh-Ju 劉學儒 2018 學位論文 ; thesis 67 en_US |
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碩士 === 國立交通大學 === 應用化學系碩博士班 === 107 === The motivation of this research is to synthesize the low-valent aluminum complexes
supported by 2,7-di-tert-butyl-9H-fluorenyl ligand. FluoAlCl2(OEt2) (2, Fluo=ditbutylfluorenyl)
was first synthesized then reduced by KC8 (potassium graphite) to form Fluo2AlCl(OEt2) (3),
[Fluo3AlKCl(OEt2)] (4) and Fluo3Al(OEt2) (5). Another strategy was taken to synthesize a group
of tris-fluorenyl ligands: H3L1 and H3L2. Numerous amides were mixed with 2 to form
FluoAlCl(N(SiMe3)2)(THF) (6) FluoAl(N(SiMe3)2)2 (7), FluoAlCl(NiPr2)(OEt2) (8) and
FluoAl(NHDipp)2(OEt2) (9). Bulky NHC (N-heterocyclic) carbene like IMes (1,3-bis(2,4,6
trimethylphenyl)imidazolylidene) and IPr (1,3-Bis-(2,6-diisopropylphenyl)imidazole-ylidene)
were also mixed with 2 to form FluoAl(IMes)Cl2 (10) and FluoAl(IPr)Cl2 (11). FluoAlH2(OEt2)
(12) was formed by mixing 3 with one equiv. of LAH (lithium aluminum hydride).
FluoAl(dmap)H2 (13, dmap = 4-dimethylaminopyridine) was then synthesized by mixing 12 with
one equiv. of dmap. Reduction of 6, 7, 8 and 9 using KC8 resulted in a group of unclean spectra.
KFluo, the potassium salt and an unidentified Al(NHC) species were found after the KC8 reduction
of 10 and 11. 13 tended to release free ditbutylfluorene (1) upon heating, likely resulting from
reductive elimination at Al center.
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author2 |
Liu, Hsueh-Ju |
author_facet |
Liu, Hsueh-Ju Hwang, Robin Christine 黃珞蕎 |
author |
Hwang, Robin Christine 黃珞蕎 |
spellingShingle |
Hwang, Robin Christine 黃珞蕎 Study of Synthesis, Characterization and Reactivity of Fluorenyl Aluminum(III) Complexes |
author_sort |
Hwang, Robin Christine |
title |
Study of Synthesis, Characterization and Reactivity of Fluorenyl Aluminum(III) Complexes |
title_short |
Study of Synthesis, Characterization and Reactivity of Fluorenyl Aluminum(III) Complexes |
title_full |
Study of Synthesis, Characterization and Reactivity of Fluorenyl Aluminum(III) Complexes |
title_fullStr |
Study of Synthesis, Characterization and Reactivity of Fluorenyl Aluminum(III) Complexes |
title_full_unstemmed |
Study of Synthesis, Characterization and Reactivity of Fluorenyl Aluminum(III) Complexes |
title_sort |
study of synthesis, characterization and reactivity of fluorenyl aluminum(iii) complexes |
publishDate |
2018 |
url |
http://ndltd.ncl.edu.tw/handle/c964q8 |
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