Organometallics p. 3920 - 3922 (1992)
Update date:2022-08-17
Topics:
Brookhart
Grant
Volpe Jr.
A convenient synthesis of the easily handled, crystalline oxonium acid [(3,5-(CF3)2C6H3)4B] -[H(OEt2)2]+ (1) is described. The utility of this reagent for generation and stabilization of highly electrophilic cationic transition-metal complexes through protonation reactions is illustrated by the preparation of stable, ether-free salts of [C5Me5(P(OMe)3)CoCH2CH 2(μ-H)]+[(3,5-(CF3)2C 6H3)4B]- from C5Me5(P(OMe)3)Co(C2H4). The incorporation of the noncoordinating counterion [(3,5-(CF3)2C6H3)4B] - in organometallic salts has several advantages relative to [BF4]- and [PF6]-, including high stability and solubility in relatively nonpolar organic solvents.
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Doi:10.1039/d0ta05753c
(2020)Doi:10.1039/c39870001480
(1987)Doi:10.1021/ja981227l
(1999)Doi:10.1002/pssa.2210730132
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(2006)Doi:10.1007/BF01431115
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