Abstract
We report three novel lithium zincate alkoxo clusters, which can be accessed through a convenient co‐complexation reaction of the corresponding dialkylzinc derivatives with lithium alkoxides of the formula [LiO(CH2)2N(CH3)2], or via a deprotonation process mediated by the higher‐order zincate Li2ZnEt4 and dimethylethanolamine. These complexes have been isolated as colourless crystalline solids and characterised by multinuclear magnetic resonance spectroscopy, elemental and single‐crystal X‐ray diffraction analysis. XRD analysis of the crystal structures, combined with 1H DOSY NMR experiments, was crucial for understanding the chemistry behind these complexes. Furthermore, complexes obtained by mixing ZnEt2 with a chiral nonracemic lithium alkoxide generated from (1R,2S)‐N‐methylephedrine have been explored in promoting an enantioselective Michael addition reaction towards trans‐β‐nitrostyrene, with the corresponding nitroalkane isolated in up to 37.3% enantiomeric excess.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
