@article{pittir17951,
          volume = {134},
          number = {12},
           month = {March},
          author = {X Pan and E Lac{\^o}te and J Lalev{\'e}e and DP Curran},
           title = {Polarity reversal catalysis in radical reductions of halides by N-heterocyclic carbene boranes},
         journal = {Journal of the American Chemical Society},
           pages = {5669 -- 5674},
            year = {2012},
             url = {http://d-scholarship-dev.library.pitt.edu/17951/},
        abstract = {Otherwise sluggish or completely ineffective radical reductions of alkyl and aryl halides by N-heterocyclic carbene boranes (NHC-boranes) are catalyzed by thiols. Reductions and reductive cyclizations with readily available 1,3-dimethylimidazol-2-ylidene borane and a water-soluble triazole relative are catalyzed by thiophenol and tert-dodecanethiol [C 9H 19C(CH 3) 2SH]. Rate constants for reaction of the phenylthiyl (PhS?) radical with two NHC-boranes have been measured to be {$\sim$}10 8 M -1 s -1 by laser flash photolysis experiments. An analysis of the available evidence suggests the operation of polarity reversal catalysis. {\copyright} 2012 American Chemical Society.}
}