Diastereoselective synthesis of functionalised carbazoles via a sequential Diels–Alder/ene reaction strategy

Abstract

A one-pot, three-component, synthesis of saturated carbazoles and related pyridazino[3,4-<italic>b</italic>]indoles is described, involving an intermolecular Diels–Alder/intermolecular ene reaction sequence with relative stereocontrol of up to four stereocentres.