CAAC Boranes. Synthesis and characterization of cyclic (alkyl) (amino) carbene borane complexes from BF<sub>3</sub> and BH<sub>3</sub>
作者:Julien Monot、Louis Fensterbank、Max Malacria、Emmanuel Lacôte、Steven J Geib、Dennis P Curran
DOI:10.3762/bjoc.6.82
日期:——
In situ formation of two cyclic (alkyl) (amino) carbenes (CAACs) followed by addition of BF(3)*Et(2)O provided the first two examples of CAAC-BF(3) complexes: 1-(2,6-diisopropylphenyl)-3,5,5-trimethyl-3-phenylpyrrolidin-2-ylidene trifluoroborane, and 2-(2,6-diisopropylphenyl)-3,3-dimethyl-2-azaspiro[4.5]decan-1-ylidene trifluoroborane. These CAAC-BF(3) complexes are robust compounds that are stable