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Abstract Nickel‐catalyzed intramolecular hydrosilylation can be efficiently achieved with high regio‐ and stereoselectivities through two distinct methodologies. The first approach utilizes a conventional method, involving the reduction of nickel salt (NiBr 2 ‐2,2’‐bipyridine) using manganese metal. The second method employs a one‐step electrochemical reaction, utilizing the sacrificial anode process and NiBr 2 bipy catalysis. Both methods yield silylated heterocycles in good to high yields through a syn ‐ exo ‐ dig cyclization process. Control experiments and molecular electrochemistry (cyclic voltammetry) provided further insights into the reaction mechanism.
Reboli et al. (Fri,) studied this question.