Abstract

AbstractThe palladium‐catalyzed intramolecular coupling reactions of aryl bromides tethered with conjugated dienoates give a 1 H‐isochromene ring system via 6‐endo‐trig cyclization almost exclusively. However, both 6‐endo‐trig and 6‐exo‐trig cyclizations are competitive processes in the palladium‐catalyzed intramolecular coupling reactions of aryl bromides tethered with conjugated dienones.

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