Abstract
Reduction of the boron difluorides HC[(CBut)(NAr)]2BF2 led to C–N bond cleavage to give the iminoborane [C(But)CHC(But)NAr]B═NAr (2, Ar = 2,6-Me2C6H3; 2′, Ar = 2,6-Pri2C6H3) stabilized by an intramolecular imine group. Reaction of 2 with NHC resulted in nucleophilic attack on the α-carbon atom to give [C(But)(NHC)CHC(But)NAr]B═NAr (3). 2 reacted with CO2 to give [C(But)CHC(But)NAr]B(CO2)NAr (4).
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