An efficient three-component one-pot approach to the synthesis of 2,3,4,5-tetrahydro-1H-2-benzazepines by means of rhodium-catalyzed hydroaminomethylation.

We have developed a novel and efficient three-component one-pot, catalytic approach for the synthesis of 2,3,4,5-tetrahydro-1H-2-benzazepines, using a rhodium catalyst that does not require phosphine. The isolated yields are excellent and the protocol tolerates anilines of diverse basicity.