A new method for the generation of indole-2,3-quinodimethanes and 2-(N-alkoxycarbonylamino)-1,3-dienes. Intramolecular Heck/Diels–Alder cycloaddition cascade starting from acyclic α-phosphono enecarbamates†
Abstract
An intramolecular Heck/Diels–Alder cycloaddition cascade starting from acyclic α-phosphono enecarbamates has been developed to prepare nitrogen heterocycles via