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Synthesis and reactivity of fluorinated triaryl aluminum complexes

Ould, Darren M. C., Carden, Jamie L., Page, Rowan and Melen, Rebecca L. 2020. Synthesis and reactivity of fluorinated triaryl aluminum complexes. Inorganic Chemistry 59 (20) , pp. 14891-14898. 10.1021/acs.inorgchem.0c01076

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Abstract

The addition of the Grignard 3,4,5-ArFMgBr to aluminum(III) chloride in ether generates the novel triarylalane Al(3,4,5-ArF)3·OEt2. Attempts to synthesize this alane via transmetalation from the parent borane with trimethylaluminum gave a dimeric structure with bridging methyl groups, a product of partial transmetalation. On the other hand, the novel alane Al(2,3,4-ArF)3 was synthesized from the parent borane and trimethylaluminum. Interestingly, the solid-state structure of Al(2,3,4-ArF)3 shows an extended chain structure resulting from neighboring Al···F contacts. Al(3,4,5-ArF)3·OEt2 was then found to be an effective catalyst for the hydroboration of carbonyls, imines, and alkynes with pinacolborane.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Publisher: American Chemical Society
ISSN: 0020-1669
Funders: EPSRC
Date of First Compliant Deposit: 2 September 2020
Date of Acceptance: 17 August 2020
Last Modified: 22 Oct 2020 13:36
URI: http://orca.cf.ac.uk/id/eprint/134612

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