Abstract
| - A highly efficient secondary benzylation procedure has beendemonstrated using a high-valent heterobimetallic complex[Ir2(COD)2(SnCl3)2(Cl)2(μ-Cl)2] 1 as the catalyst in 1,2-dichloroethane to afford the corresponding benzylated products in moderate to excellent yields. The reaction wasperformed not only with carbon nucleophiles (arenes andheteroarenes) but also with oxygen (alcohol), nitrogen (amideand sulfonamide), and sulfur (thiol) nucleophiles. Mechanistic investigation showed the intermediacy of the ether inthis reaction. An electrophilic mechanism is proposed fromHammett correlation.
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