Lithium‐Aluminate‐Catalyzed Hydrophosphination Applications

Synthesized, isolated, and characterized by X‐ray crystallography and NMR spectroscopic studies, lithium phosphidoaluminate iBu(3)AlPPh(2)Li(THF)(3) has been tested as a catalyst for hydrophosphination of alkynes, alkenes, and carbodiimides. Based on the collective evidence of stoichiometric reactio...

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Detalles Bibliográficos
Autores principales: Pollard, Victoria A., Young, Allan, McLellan, Ross, Kennedy, Alan R., Tuttle, Tell, Mulvey, Robert E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Research Articles
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6771573/
https://www.ncbi.nlm.nih.gov/pubmed/31260154
http://dx.doi.org/10.1002/anie.201906807
Descripción
Sumario:Synthesized, isolated, and characterized by X‐ray crystallography and NMR spectroscopic studies, lithium phosphidoaluminate iBu(3)AlPPh(2)Li(THF)(3) has been tested as a catalyst for hydrophosphination of alkynes, alkenes, and carbodiimides. Based on the collective evidence of stoichiometric reactions, NMR monitoring studies, kinetic analysis, and DFT calculations, a mechanism involving deprotonation, alkyne insertion, and protonolysis is proposed for the [iBu(3)AlHLi](2) aluminate catalyzed hydrophosphination of alkynes with diphenylphosphine. This study enhances further the development of transition‐metal‐free, atom‐economical homogeneous catalysis using common sustainable main‐group metals.

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