The first synthesis of 6-(phenylethynyl)-substituted tetrahydroazocino[5,4-b]indoles

The reaction of 2-methyl-1-(phenylethynyl)-2,3,4,9-tetrahydro-1?-β-carboline with activated alkynes in acetonitrile led to the formation of 1-vinyl-substituted β-carbolines and condensed azocines. © 2016 Springer Science+Business Media New York.