Abstract

The collaborating partners of DMP and quaternary ammonium salt (TBAF, TBAC, TBAB, TBAI) emerged as powerful oxidation and halogenation reagents in the synthesis of structurally diversified iminoquinones were extensively investigated. The plausible mechanism concerned that the in-situ formed Bu4N⁺X^-(OAc)2 was the key intermediate, and further halogenation reaction occurred via electrophilic substitution process.

Keywords: Anilines, DMP, halogenations, oxidation, TBAB, iminoquinone, amino, pharmaceuticals, bromide, ammonium