Projects per year
Abstract
A series of magnesium(II) complexes bearing the sterically demanding phosphinoamide ligand, L−=Ph2PNDip−, Dip=2,6-diisopropylphenyl, including heteroleptic magnesium alkyl and hydride complexes are described. The ligand geometry enforces various novel ring and cluster geometries for the heteroleptic compounds. We have studied the stoichiometric reactivity of [(LMgH)4] towards unsaturated substrates, and investigated catalytic hydroborations and hydrosilylations of ketones and pyridines. We found that hydroborations of two ketones with pinacolborane using various Mg precatalysts is very rapid at room temperature with very low catalyst loadings, and ketone hydrosilylation using phenylsilane is rapid at 70 °C. Our studies point to an insertion/σ-bond metathesis catalytic cycle of an in situ formed “MgH2” active species.
Original language | English |
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Pages (from-to) | 10235-10246 |
Number of pages | 12 |
Journal | Chemistry - A European Journal |
Volume | 22 |
Issue number | 29 |
DOIs | |
Publication status | Published - 2016 |
Keywords
- hydrides
- hydroboration
- hydromagnesiation
- hydrosilylation
- magnesium
Projects
- 3 Finished
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Novel hydride complexes for chemical applications
Stasch, A. (Primary Chief Investigator (PCI))
Australian Research Council (ARC), Monash University
2/01/14 → 6/05/16
Project: Research
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Low oxidation state magnesium complexes: multitalented reagents for sustainable chemical synthesis
Jones, C. (Primary Chief Investigator (PCI)) & Stasch, A. (Chief Investigator (CI))
Australian Research Council (ARC), Monash University
2/01/14 → 21/12/17
Project: Research
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New reactivity from unusual main group compounds
Stasch, A. (Primary Chief Investigator (PCI))
Australian Research Council (ARC), Monash University
29/03/12 → 31/03/16
Project: Research