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Azaheptafulvenes reacting with bicyclo[1.1.0]butanes (BCBs) through FeCl3 or Sc(OTf)3-promoted formal [8+3] cycloaddition reactions to furnish Nitrogen-containing polycyclic compounds has been developed for the first time. This new reaction tolerated a wide range of azaheptafulvenes and BCBs. Furthermore, the amplification experiments and synthetic transformations of the cycloaddition compounds further highlighted its practicality.
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Li et al. (2024) studied this question.
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