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Continuous gas-phase hydroaminomethylation using supported ionic liquid phase catalysts.

The term hydroaminomethylation refers to a one-pot cascade reaction of an alkene hydroformylation followed by reductive amination. Because water is the only byproduct, this reaction sequence represents an atom-efficient, elegant way to produce amines. Scheme 1 shows the hydroaminomethylation sequence for ethylene, hydroformylation followed by reaction with diethylamine to form N,N-diethylpropan-1-amine (DEPA) through an enamine intermediate.