XBphos-Rh : a halogen-bond assembled supramolecular catalyst

The use of halogen bonding as a tool to construct a catalyst backbone is reported. Specifically, pyridyl- and iodotetrafluoroaryl-substituted phosphines were assembled in the presence of a rhodium(i) precursor to form the corresponding halogen-bonded complex . The presence of fluorine substituents a...

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Bibliographic Details
Published in:Chemical science (Cambridge) 2018, Vol.9 (15), p.3644-3648
Main Authors: Carreras, Lucas, Serrano-Torné, Marta, van Leeuwen, Piet W N M, Vidal-Ferran, Anton
Format: Article
Language:English
Subjects:
Alkynes
Bonding
Catalysis
Catalysts
Chemical Sciences
Fluorine
Hydroboration
Phosphines
Rhodium
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Summary:The use of halogen bonding as a tool to construct a catalyst backbone is reported. Specifically, pyridyl- and iodotetrafluoroaryl-substituted phosphines were assembled in the presence of a rhodium(i) precursor to form the corresponding halogen-bonded complex . The presence of fluorine substituents at the iodo-containing supramolecular motif was not necessary for halogen bonding to occur due to the template effect exerted by the rhodium center during formation of the halogen-bonded complex. The halogen-bonded supramolecular complexes were successfully tested in the catalytic hydroboration of terminal alkynes.
ISSN:2041-6520
2041-6539
DOI:10.1039/c8sc00233a