The Vilsmeier-Haack reaction of pyrrole with oxalyl chloride and N,N-dimethylformaldehyde followed by Friedel-Crafts alkylation with Me3CCl in the presence of AlCl3 afforded 5-tert-butylpyrrole-2- carbal- dehyde in high yields. Condensation reactions of 5-tert-butylpyrrole-2- carbaldehyde with 2,6-diisopropylaniline produced 5-tert-Butyl-2-2[(2,6- diisopropylphenyl)aldimino]pyrrole (HL). Protonolysis of MgnBu2 with HL yielded the bis(iminopyrrolate) complex MgL2 (1) as a colorless crystalline solid. In situ lithiation of HL followed by addition of one equivalent of ZrCl4 or AlCl3 led to the mono(iminopyrrolate) complexes ZrLCl4Li(OEt2)2 (2) and AlLCl2 (3) , respectively. Treatment of 3 with two equivalents of MeMgBr produced AlLMe2 (4). In addition to the spectroscopic data, all metal complexes were characterized by X-ray crystallography.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0913102-000623 |
| Date | 13 September 2002 |
| Creators | Yang, Chih-Wei |
| Contributors | Teng-yuan Dong, Lan-chang Liang, Tsu-hsin Chang |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0913102-000623 |
| Rights | unrestricted, Copyright information available at source archive |
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