Stepwise BN bond cleavage by isocyanides: access to the 3-azaborole structural motif

Key Points

• The research investigates the stepwise cleavage of the BN bond using isocyanides to create 3-azaborole structures.
• Conducted a [2+1+1] cycloaddition reaction with isocyanides
• Performed reductive insertion of a third isocyanide into the BN bond
• Characterized the resulting 3-azaborole structure
• Successfully synthesized 3-azaborole diide
• Observed significant charge delocalization onto the o-carborane framework
• Confirmed the mechanism through experimental data

Abstract