Phosphonium salts based on 2H-imidazole: synthesis by direct C–H functionalization of imidazole N-oxides
作者:A. A. Akulov、A. A. Pershin、A. A. Deleva、M. V. Varaksin、V. N. Charushin、O. N. Chupakhin
DOI:10.1007/s11172-023-4074-9
日期:2023.11
A convenient approach towards previously unknown phosphonium salts containing a non-aromatic 2H-imidazole moiety is reported. The approach is based on a direct nucleophilic C(sp2)-H functionalization of 2H-imidazole 1-oxides with triphenylphosphine acting as a nucleophile. Herewith, the heterocyclic N-oxide moiety is utilized as an auxiliary group contributing to an abstraction of C-H proton during