Ring contraction of easily available cyclic compounds to smaller cycles that are valuable but difficult to synthetically access is an important skeletal editing strategy. Here, the authors report a photo-promoted ring contraction of pyridines with silylborane to afford pyrrolidine derivatives bearing a 2- azabicyclo[3.1.0]hex-3-ene skeleton.
- Ryoga Ueno
- Shohei Hirano
- Jun Takaya
