Pd‐Catalyzed Chemoselective Cross‐Coupling Reaction of Triaryl‐ or Triheteroarylbismuth Compounds with 3,6‐Dihalopyridazines

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The cross‐coupling reactions of 3,6‐dihalopyridazines with triaryl‐ or triheteroarylbismuth compounds were performed under palladium catalysis. The reaction was highly chemoselective, affording functionalized aryl‐ or heteroarylpyridazinyl chlorides in moderate to good yields.