Synthesis of 2-Substituted Furans by Iron- and Palladium-Catalyzed Coupling Reactions

Abstract

The synthesis of 2-substituted furans via palladium- and iron-catalyzed coupling utilizing 2-bromofuran is described. Whereas palladium-catalyzed Suzuki coupling effectively provided the corresponding aryl furans, little or no product was obtained by palladium-catalyzed coupling with various alkyl nucleophiles. Iron-catalyzed coupling proved effective for the synthesis of primary and secondary alkyl furans in modest yields and aryl furans in low yields.

Key words

furan - cross-coupling - catalysis - palladium - iron

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