Synthesis of Functionalized Benzofurans by a Double Heck Reaction of 2,3-Dibromofurans and Subsequent 6 pi-Electrocyclization/Dehydrogenation

[摘要]：The twofold Heck reaction of 2,3-dibromofurans afforded 2,3-di(alkenyl) furans which were transformed into functionalized benzofurans by a domino 6 pi-electrocyclization/dehydrogenation reaction.

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