Hydroboration of Phosphaalkynes by HB(C6F5)(2)

• Published in: Chemistry : a European journal Vol. 22; no. 36; pp. 12665 - 12669
• Main Authors: Longobardi, Lauren E., Johnstone, Timothy C., Falconer, Rosalyn L., Russell, Christopher A., Stephan, Douglas W.
• Format: Journal Article
• Language: English
• Published: WEINHEIM Wiley 26.08.2016
• Subjects: Chemistry; Chemistry, Multidisciplinary; Physical Sciences; Science & Technology; COORDINATION CHEMISTRY; ACTIVATION; CARBON; hydroboration; COMPLEXES; SINGLET DIRADICALS; REACTIVITY; phosphaalkyne; FRUSTRATED LEWIS PAIRS; PHOSPHORUS-COMPOUNDS; heterocycles; BORENIUM CATIONS; BOND; phosphaalkene; phosphaalkenylborane

The hydroboration of phosphaalkynes with Piers' borane (HB(C6F5)(2)) generated unusual phosphaalkenylboranes [RCH=PB(C6F5)(2)](2) that persisted as dimers in both solution and the solid state. These P2B2 heterocycles underwent ring opening when subjected to nucleophiles, such as pyridine and te...