Multicomponent synthesis of substituted 3-styryl-1H-quinoxalin-2-ones in an aqueous medium
作者:Erivaldo P. da Costa、Sara E. Coelho、André H. de Oliveira、Renata M. Araújo、Livia N. Cavalcanti、Josiel B. Domingos、Fabrício G. Menezes
DOI:10.1016/j.tetlet.2018.09.048
日期:2018.10
is described. Sequential reactions of o-phenylenediamine with sodium pyruvate and aldehydes in 20% aqueous aceticacid containing sodium acetate provided the target products in good to high yields. The reaction is proposed to proceed via initial condensation of the diamine and pyruvate partners followed by an aldol condensation-type mechanism.