Tris(hydrogensulfato) boron as a solid heterogeneous catalyst for the rapid synthesis of α,α'-benzylidene bis(4-hydroxycoumarin) derivatives  

作　　者：Zahed Karimi-Jaberi Mohammad Reza Nazarifar Baharak Pooladian 

机构地区：[1]Department of Chemistry,Firoozabad Branch,Islamic Azad University,P.O.Box 74715-117 Firoozabad,Fars,Iran

出　　处：《Chinese Chemical Letters》2012年第7期781-784,共4页中国化学快报（英文版）

摘　　要：α, α＇-Benzylidene bis（4-hydroxycoumarin） derivatives were readily prepared in a few minutes with good yields through the reaction of an aromatic aldehyde and 4-hydroxycoumarin in aqueous media in the presence of catalytic tris（hydrogensulfato） boron [B（HSO_4）_3].α, α＇-Benzylidene bis（4-hydroxycoumarin） derivatives were readily prepared in a few minutes with good yields through the reaction of an aromatic aldehyde and 4-hydroxycoumarin in aqueous media in the presence of catalytic tris（hydrogensulfato） boron [B（HSO_4）_3].

关 键 词：Biscoumarin 4-HYDROXYCOUMARIN Tris（hydrogensulfato）boron Heterogeneous catalyst 

分 类 号：O625[理学—有机化学]