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Extremely Electron-Rich, Boron-Functionalized, Icosahedral Carborane-Based Phosphinoboranes

Author(s)
Spokoyny, Alexander M.; Lewis, Calvin D.; Teverovskiy, Georgiy; Buchwald, Stephen Leffler
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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.
Date issued
2012-11
URI
http://hdl.handle.net/1721.1/93919
Department
Massachusetts Institute of Technology. Department of Chemistry
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.
Version: Author's final manuscript
ISSN
0276-7333
1520-6041

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