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Beilstein J. Org. Chem. 2011, 7, 565–569, doi:10.3762/bjoc.7.65
Graphical Abstract
Scheme 1: Domino cyclization–substitution reactions of 2-alkynylanilines.
Scheme 2: Gold-catalyzed direct alkynylation of indoles with TIPS-EBX (1).
Scheme 3: One-pot alkynylaniline cyclization/direct alkynylation.
Scheme 4: Synthesis of 2-alkynylanilines 2.
Scheme 5: Domino cyclization–alkynylation of aniline 2a.
Scheme 6: Scope of the reaction.