Abstract: A variety of tertiary amine derivatives have been prepared by a one-pot three-component Petasis borono–Mannich reaction of two different salicylaldehydes and 2-formylpyridine, substituted morpholine/piperidines and aryl boronic acids. These reactions were carried out under microwave irradiation using a catalytic amount of La(OTf)3 in a short reaction time. This procedure has the advantages of high conversions with excellent chemoselectivity. Graphical Abstract: The attractive features of this methodology are simple procedure, green reaction, reusability and high efficiency of the catalyst and easy workability.[Figure not available: see fulltext.] © 2016, Springer Science+Business Media Dordrecht.