Ultrasonochemical synthesis of 2,3-dihydrofuranediones in aqueous medium

[摘要] 2,3-Dihydrofuranediones were prepared by an efficient one-pot multicomponent Knoevnagel-like condensation between pyrazolecarbaldehydes or indole-3-carbaldehyde, ethyl pyruvate and bromine, followed by an intramolecular cyclization in aqueous medium.

[学科分类] 内科医学

[关键词] 2;3-dihydrofuranedione;aqueous media;ethyl pyruvate;ultrasound irradiation;water