Comparative study of fluorinated triarylalanes and their borane counterparts

Kaehler, Tanja and Melen, Rebecca L. ORCID: https://orcid.org/0000-0003-3142-2831 2021. Comparative study of fluorinated triarylalanes and their borane counterparts. Cell Reports Physical Science 2 (10) , 100595. 10.1016/j.xcrp.2021.100595

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Abstract

The chemistry of Lewis acids, in particular that of triarylboranes, has received unprecedented attention in recent years. Particularly in their role as the Lewis acid component of frustrated Lewis pairs (FLPs), boranes have shown astonishing properties, for example in their ability to bind H2 reversibly. With the current spotlight on main-group chemistry, the heavier aluminum homologs have not yet received much attention. Herein, we provide an overview of the synthesis, properties, and reactivities of fluorinated triarylalanes [Al(ArF)3] in direct comparison to their boron counterparts [B(ArF)3]. In part, the scarcity of studies on fluorinated triarylalanes could be attributed to their shock- and thermal-sensitive nature, which has hampered progress in this field. However, because of their enhanced Lewis acidity compared to their boron complements, they have shown promising behavior in the fields of FLPs and, more recently, frustrated radical pairs (FRPs). They are also capable of effectively catalyzing polymerizations and hydroboration reactions and have proven to be useful as aryl nucleophiles in stochiometric reactions.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Publisher:	Elsevier
ISSN:	2666-3864
Funders:	EPSRC
Date of First Compliant Deposit:	28 October 2021
Date of Acceptance:	6 October 2021
Last Modified:	23 May 2023 15:50
URI:	https://orca.cardiff.ac.uk/id/eprint/145126

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