Lewis base activation of borane-dimethylsulfide into strongly reducing ion pairs for the transformation of carbon dioxide to methoxyboranes

The hydroboration of carbon dioxide into methoxyboranes by borane-dimethylsulfide using different base catalysts is described. A non-nucleophilic proton sponge is found to be the most active catalyst, with TOF reaching 64 h(-1) at 80 °C, and is acting via the activation of BH3·SMe2 into a boronium-b...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2014-10, Vol.50 (77), p.11362-11365
Main Authors: Légaré, Marc-André, Courtemanche, Marc-André, Fontaine, Frédéric-Georges
Format: Article
Language:English
Subjects:
Activation
Carbon dioxide
Catalysis
Catalysts
Ion pairs
Lewis base
Sponges
Transformations
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Summary:The hydroboration of carbon dioxide into methoxyboranes by borane-dimethylsulfide using different base catalysts is described. A non-nucleophilic proton sponge is found to be the most active catalyst, with TOF reaching 64 h(-1) at 80 °C, and is acting via the activation of BH3·SMe2 into a boronium-borohydride ion pair.
ISSN:1359-7345
1364-548X
DOI:10.1039/c4cc04857a