A 53 An expedient solvent-free c-benzylation of 4-hydroxycoumarin with styrenes / R. Chatterjee, A. Majee, A. Mukherjee [et al.] // Mendeleev Communications. - 2021. - Vol. 31, № 1. - P123-124 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: An efficient straightforward solvent-free C(3)-benzylation of 4-hydroxycoumarin with styrenes is performed by heating the reactants in the presence of p-toluenesulfonic acid. By this procedure, benzylated 4-hydroxycoumarin derivatives which exhibit various biological activities were obtained. |