Lithium-aluminate-catalyzed hydrophosphination applications

Pollard, Victoria A. and Young, Allan and McLellan, Ross and Kennedy, Alan R. and Tuttle, Tell and Mulvey, Robert E. (2019) Lithium-aluminate-catalyzed hydrophosphination applications. Angewandte Chemie International Edition, 58 (35). pp. 12291-12296. ISSN 1433-7851

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    Abstract

    Synthesized, isolated, and characterized by X-ray crystallography and NMR spectroscopic studies, lithium phosphidoaluminate iBu3AlPPh2Li(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 [iBu3AlHLi]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.

    ORCID iDs

    Pollard, Victoria A. ORCID logoORCID: https://orcid.org/0000-0002-9149-3458, Young, Allan ORCID logoORCID: https://orcid.org/0000-0002-1525-4703, McLellan, Ross ORCID logoORCID: https://orcid.org/0000-0001-9700-0258, Kennedy, Alan R. ORCID logoORCID: https://orcid.org/0000-0003-3652-6015, Tuttle, Tell and Mulvey, Robert E. ORCID logoORCID: https://orcid.org/0000-0002-1015-2564;