%A T Taniguchi
%A DP Curran
%J Angewandte Chemie - International Edition
%T Hydroboration of arynes with N-heterocyclic carbene boranes
%X Arynes were generated in situ from ortho-silyl aryl triflates and fluoride ions in the presence of stable N-heterocyclic carbene boranes (NHC-BH3). Spontaneous hydroboration ensued to provide stable B-aryl-substituted NHC-boranes (NHC-BH2Ar). The reaction shows good scope in terms of both the NHC-borane and aryne components and provides direct access to mono-and disubstituted NHC-boranes. The formation of unusual ortho regioisomers in the hydroboration of arynes with an electron-withdrawing group supports a hydroboration process with hydride-transfer character.
%N 48
%P 13150 - 13154
%V 53
%D 2014
%R 10.1002/anie.201408345
%L pittir25654