Audsley G, Carpentier A, Pécharman AF, Wright J, Roseveare TM, Clark ER, Macgregor SA, Riddlestone IM. Contrasting reactivity of B-Cl and B-H bonds at [Ni(IMes)
2] to form unsupported Ni-boryls.
Chem Commun (Camb) 2024;
60:874-877. [PMID:
38164828 DOI:
10.1039/d3cc05369e]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
[Ni(IMes)2] reacts with chloroboranes via oxidative addition to form rare unsupported Ni-boryls. In contrast, the oxidative addition of hydridoboranes is not observed and products from competing reaction pathways are identified. Computational studies relate these differences to the mechanism of oxidative addition: B-Cl activation proceeds via nucleophilic displacement of Cl-, while B-H activation would entail high energy concerted bond cleavage.
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