Extremely Electron-Rich, Boron-Functionalized, Icosahedral Carborane-Based Phosphinoboranes
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Author(s)
Spokoyny, Alexander M.
Lewis, Calvin D.
Teverovskiy, Georgiy
Buchwald, Stephen Leffler
Date Issued
November 2012
Journal
Organometallics
Publisher
American Chemical Society (ACS)
Citation
Spokoyny, Alexander M., Calvin D. Lewis, Georgiy Teverovskiy, and Stephen L. Buchwald. “Extremely Electron-Rich, Boron-Functionalized, Icosahedral Carborane-Based Phosphinoboranes.” Organometallics 31, no. 24 (December 24, 2012): 8478–8481.
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Author's final manuscript
Abstract
We have prepared the first examples of B9-connected trivalent aryl and alkyl phosphinoborane species via Pd-catalyzed phosphination of 9-iodo-meta-carborane. Our studies highlight the unique electronic features of the B9-connected meta-carboranyl moiety as compared to its C1-based analogue. This work suggests that the B9-functionalized meta-carboranyl substituent in these ligands exhibits more electron-releasing character than any other known carbon-based substituent, ultimately laying the foundation for a new class of phosphine ligands with extremely electron-rich character.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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DOI of Published Version
https://doi.org/10.1021/om301116x
