Multiple C–B Bond Cleavage Reactions at [BArF4]− Anions Mediated by Terphenyl Phosphine Gold Catalysts

Fluorinated borates have been widely used as innocent and weakly coordinating counteranions. Among those, [BArF4]− ([B(C6H3-3,5-(CF3)2)4]−) occupies a prominent position due to the robustness of its B-C carbon bonds. Herein, we investigate C-B bond cleavage in the [BArF4]− anion mediated by cationic...

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Bibliographic Details
Authors: Miranda-Pizarro, Juan, Navarro, Miquel, Campos, Jesús
Format: article
Status:Versión aceptada para publicación
Publication Date:2025
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/384472
Online Access:http://hdl.handle.net/10261/384472
https://api.elsevier.com/content/abstract/scopus_id/85211976060
Access Level:Open access
Keyword:Anions
Bond cleavage
Gold
Group 13 compounds
Inorganic compounds
anions
gold
inorganic compounds
boron compounds
aluminium
gallium
indium
thallium
Description
Summary:Fluorinated borates have been widely used as innocent and weakly coordinating counteranions. Among those, [BArF4]− ([B(C6H3-3,5-(CF3)2)4]−) occupies a prominent position due to the robustness of its B-C carbon bonds. Herein, we investigate C-B bond cleavage in the [BArF4]− anion mediated by cationic gold fragments of type [Au(PMe2Ar′)]+, where Ar′ stands for bulky terphenyl (C6H3-2,6-Ar2) substituents. In addition, we have exploited the stoichiometric B-C bond cleavage to construct a catalytic cycle for the synthesis of boranes under acidic conditions.