Selective Synthesis of Six Products from a Single Indolyl α‐Diazocarbonyl Precursor

Indolyl α‐diazocarbonyls can be selectively cyclized to give six distinct products through the careful choice of catalyst and reaction conditions. A range of catalysts were used, including complexes of Rh II , Pd II , and Cu II , as well as SiO 2 , to promote diazo decomposition and subsequent cyclization/rearrangement through a range of mechanistic pathways.