Hf4+-exchanged montmorillonite-boosted Pd-catalyzed reductive aminolysis of aryl ethers to efficiently synthesize cyclohexylamines

A robust and completely heterogeneous catalyst, Pd/Hf-MMT, was highly efficient for reductive aminolysis of aryl ethers to producce N -cyclohexyl-substituted amines at a low H 2 pressure of 0.3 MPa without using any homogeneous acidic additives.