KHSO_4 Supported onto Bentonite, A Versatile Reagent for Aromatization of Hantzsch 1,4-Dihydropyridines

摘要

Aromatization of Hantzsch 1,4-dihydropyridines was promoted by KHSO_4, a relatively green chemical, supported onto bentonite to yield the corresponding pyridine derivatives in excellent yields. The reaction was carried out under mild and convenient conditions.