- A Bifunctional MOF Catalyst Containing Metal-Phosphine and Lewis Acidic Active Sites.
A Bifunctional MOF Catalyst Containing Metal-Phosphine and Lewis Acidic Active Sites.
Chemistry (Weinheim an der Bergstrasse, Germany) (2018-07-07)
Ram R R Prasad, Daniel M Dawson, Paul A Cox, Sharon E Ashbrook, Paul A Wright, Matthew L Clarke
PMID29979815
ABSTRACT
Post-synthetic modification of the hafnium metal-organic framework MOF-808(Hf) to include triarylphosphine ligands is reported. Sulfonated phenylphosphines are incorporated without oxidation to give a "MOF ligand" that can complex late transition metals such as Ir and Rh to give a bifunctional catalyst containing both metal-phosphine complexes and the Lewis acidic framework hafnium metal sites. The metallated phosphine-bearing MOFs act as fully heterogeneous bifunctional catalysts for tandem reductive amination and hydroaminomethylation reactions.