RT Journal Article T1 Regioselective N-2 Alkylation of Tetrazoles with Phenacyl Halides under Mechanochemical Conditions and Its Application to a Solid-State Synthesis of the Antiepileptic Drug Cenobamate A1 Bepirszcz, Kamila A1 Mazzetta, Anna Maria A1 Gómez-Carpintero Jiménez, Jorge A1 Sánchez Cebrián, Juan Domingo A1 González Matilla, Juan Francisco A1 Menéndez Ramos, José Carlos AB Tetrazole derivatives are very important compounds in medicinal chemistry, and their preparation typically requires multistep sequences. Therefore, the regioselective N-alkylation of tetrazoles is a highly significant synthetic objective. We have explored the alkylation of tetrazoles with phenacyl halides under mechanochemical conditions to enhance the selectivity for N-2 regioisomers. The yield and regioisomeric ratio were found to depend on the nature of the grinding auxiliary, which can be explained by the ion pair formation. This methodology enabled the fully mechanochemical synthesis of the antiepileptic drug cenobamate, representing a substantial improvement over existing methods from a sustainability perspective. PB ACS Publications SN 2168-0485 SN 2168-0485 YR 2025 FD 2025 LK https://hdl.handle.net/20.500.14352/134634 UL https://hdl.handle.net/20.500.14352/134634 LA eng NO Bepirszcz K, Mazzetta AM, Gómez-Carpintero J, et al. Regioselective N-2 Alkylation of Tetrazoles with Phenacyl Halides under Mechanochemical Conditions and Its Application to a Solid-State Synthesis of the Antiepileptic Drug Cenobamate. ACS Sustainable Chem Eng 2025;13:7332–41. https://doi.org/10.1021/acssuschemeng.4c09608 NO Ministerio de Ciencia, Innovación y Universidades (España) NO Universidad Complutense de Madrid DS Docta Complutense RD 28 abr 2026