Nickel-Catalyzed Electrochemical Reductive Cross-Electrophile Coupling of Alkylpyridinium Salts and Aryl Halides

An electrochemically driven, nickel-catalyzed cross-electrophile coupling reaction of alkylpyridinium salts and aryl halides is reported. High-throughput experimentation (HTE) was employed for rapid reaction optimization and evaluation of a broad scope of pharmaceu-tically relevant structurally diverse aryl halides, including complex drug-like substrates. In addition, the transformation is compatible with both primary and secondary alkylpyridinium salts. Systematic comparisons of the electrochemical and non-electrochemical methods revealed the complementary scope and efficiency of the two approaches.