Nucleophilic addition of β-amino carbanions to arynes: one-pot synthesis of 4-aryl-N-methyl-1,2,3,4-tetrahydroisoquinolines.

A novel approach for the direct C-4 arylation of N-methyl-1,2,3,4-tetrahydroisoquinolines by nucleophilic addition of β-aminocarbanions to benzynes is described which provides a one-pot procedure for synthesis of the title compounds.