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Beilstein J. Org. Chem. 2013, 9, 1426–1431, doi:10.3762/bjoc.9.160
Graphical Abstract
Scheme 1: Sonogashira alkynylation–cyclization sequence for indole and benzofuran syntheses.
Scheme 2: Optimization of the nitrogen protecting group. aReaction conditions: 2-iodoaniline (0.5 mmol), phen...
Scheme 3: Preparation of N-protected 2-iodoanilines.
Scheme 4: Preparation of N-protected 3-iodo-2-aminopyridines.
Scheme 5: Preparation of indoles, azaindoles and benzofurans. aReaction conditions: 2-iodoaniline (0.5 mmol),...