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Magnesium hydrides bearing sterically demanding amidinate ligands: synthesis, reactivity and catalytic application

Bakewell, C; (2020) Magnesium hydrides bearing sterically demanding amidinate ligands: synthesis, reactivity and catalytic application. Dalton Transactions , 49 (32) pp. 11354-11360. 10.1039/d0dt02523b. Green open access

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Abstract

The synthesis and characterisation of a series of magnesium complexes bearing sterically demanding amidinate ligands is reported; this includes magneisum amides (1a and 1b), hydrides (3a and 3b) and alkyl complexes (2b). The solid and solution state behaviour of the complexes has been investigated using single crystal X-ray diffraction and NMR spectroscopy, revealing the magnesium hydrides to exist as dimers in the solid state, dispite the sterically demanding ligand systems and showing a degree of monomeric character in solution. The stoichiometric and catalytic activity of the amidinate complexes were investigated, with the complexes found to efficiently mediate both the hydroamination of N,N'-diisopropylcarbodiimide and the Tishchenko reaction. The metal hydrides are highly reactive towards coordinating substrates, showing a significant increase in catalytic rate compared with more ubiquitous β-diketiminate magnesium hydrides.

Type: Article
Title: Magnesium hydrides bearing sterically demanding amidinate ligands: synthesis, reactivity and catalytic application
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1039/d0dt02523b
Publisher version: https://doi.org/10.1039/d0dt02523b
Language: English
Additional information: This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. See here for more information: https://creativecommons.org/licenses/by/3.0/
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/10108163
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