ChemInform Abstract: Photochemical Behavior of 2,5-Di-tert-butyl-3H-azepine: Unexpected Formation of a Dicyclopenta[b,e]pyridine Derivative and a cis,cis-Cyclodeca-1,6-diene Derivative.

ChemInform Abstract: A New Ring Contract

ChemInform Abstract: A New Ring Contraction Rearrangement of 2,5- and 3,6-Di-tert-butyl-3H- azepines to Pyridine Derivatives.

✍ K. SATAKE; K. TAKAOKA; M. HASHIMOTO; H. OKAMOTO; M. KIMURA; S. MOROSAWA 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 28 KB 👁 2 views

A New Ring Contraction Rearrangement of 2,5-and 3,6-Di-tertbutyl-3H-azepines to Pyridine Derivatives. -A novel ring contraction reaction of di-tert-butyl-substituted 3H-azepines furnishing pyridine derivatives under bromination conditions is described. A plausible mechanism for the rearrangement via