The development of non-noble metal catalysts has become a prominent topic in the field of Organometallic Chemistry research. Aldehydes and ketones have been catalytically reduced through hydroboration employing unsupported bimetallic Li-M complexes, where M is a group 13 metal (Al, Ga or, In). Herein, we disclose our studies on the supported Li-M complex [Li{(tert-Bu)M(o-C6H4(NMe2))3}],where M=Ga, which catalyzes the hydroboration of benzophenone at room temperature using HBpin. A tris-chelate of Gallium complex [Ga(o-C6H4(NMe2))3] was synthesized as precursors to produce the Li-Ga complex [Li{(tert-Bu)Ga(o-C6H4(NMe2))3}] in excellent yield by reacting it with tert-Butyl lithium in diethyl ether [yield (93%)].The precursor and complexes were characterized by ATR-IR, 1H-NMR,7Li-NMR and 13C-NMR spectroscopic methods and single crystal X-ray crystallography. The complex [Li{(tert-Bu)Ga(o-C6H4(NMe2))3}] exhibited strong activities when employed as catalyst for the hydroboration of benzophenone. A comparative study on the hydroboration reactions of benzophenone catalyzed by [Li{(tert-Bu)Ga(o-C6H4(NMe2))3}] under various catalytic loading conditions has been discussed herein.
| Identifer | oai:union.ndltd.org:MSSTATE/oai:scholarsjunction.msstate.edu:td-7311 |
| Date | 13 August 2024 |
| Creators | Hasan, Mohammad Raziul |
| Publisher | Scholars Junction |
| Source Sets | Mississippi State University |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Theses and Dissertations |
Page generated in 0.0017 seconds