Two direct synthetic methods of 1,2,3,4-tetrahydro-β-carboline derivatives have been developed. After initial indole formation by copper-catalyzed domino three-component coupling−cyclization using an appropriate ethynylaniline, aldehyde, and a secondary amine, treatment with t-BuOK/hexane or MsOH afforded the desired tetrahydro-β-carboline derivatives in moderate to good yields.