4 years ago

Oxoborane (RBO) Complexation and Concomitant Electrophilic Bond Activation Processes

Oxoborane (RBO) Complexation and Concomitant Electrophilic Bond Activation Processes
Michael J. Ferguson, Eric Rivard, Anindya K. Swarnakar, Robert McDonald, Christian Hering-Junghans
Donor–acceptor complexes of the oxoboranes ClB=O and HOB=O were synthesized and each feature short multiply bonded B=O linkages. The retention of high Lewis acidic character within these encapsulated monomeric oxoboranes was manifested by their ability to support C−F and Si−O bond activation/functionalization. The reported ClB=O complexes can be regarded as synthetic surrogates of the [BO]+ cation, an inorganic analogue of CO. Giving a HO−B=O a home: A general donor–acceptor stabilization protocol is used to isolate Cl−B=O and HO−B=O complexes, and promote the electrophilic activation of C−F and Si−O bonds.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201702154

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