Abstract
An efficient one-pot copper(I)- and palladium-catalyzed synthesis of indoles from N-(2-iodo-aryl)formamides and phenylacetylene is described. The cascade reaction comprises a Sonogashira cross-coupling, an intramolecular C–N bond formation, and hydrolysis of the intermediate indole-1-carbaldehyde promoted by the same catalyst and base systems.
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