A convenient method for the generation of {Rh(PNP)}(+) and {Rh(PONOP)}(+) fragments: reversible formation of vinylidene derivatives

The substitution reactions of [Rh(COD)(2)][BAr(F)(4)] with PNP and PONOP pincer ligands 2,6-bis(di-tert-butylphosphinomethyl)pyridine and 2,6-bis(di-tert-butylphosphinito)pyridine in the weakly coordinating solvent 1,2-F(2)C(6)H(4) are shown to be an operationally simple method for the generation of...

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Detalles Bibliográficos
Autores principales: Gyton, Matthew R., Hood, Thomas M., Chaplin, Adrian B.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2019
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6394201/
https://www.ncbi.nlm.nih.gov/pubmed/30729961
http://dx.doi.org/10.1039/c8dt05049j
Descripción
Sumario:The substitution reactions of [Rh(COD)(2)][BAr(F)(4)] with PNP and PONOP pincer ligands 2,6-bis(di-tert-butylphosphinomethyl)pyridine and 2,6-bis(di-tert-butylphosphinito)pyridine in the weakly coordinating solvent 1,2-F(2)C(6)H(4) are shown to be an operationally simple method for the generation of reactive formally 14 VE rhodium(i) adducts in solution. Application of this methodology enables synthesis of known adducts of CO, N(2), H(2), previously unknown water complexes, and novel vinylidene derivatives [Rh(pincer)(CCHR)][BAr(F)(4)] (R = tBu, 3,5-tBu(2)C(6)H(3)), through reversible reactions with terminal alkynes.

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