纳米二氧化硅负载FeCl_3作为一种高效多相催化剂用于合成1,2,4-三嗪衍生物(英文)

作     者：Davood Habibi Somayyeh Vakili 

作者机构：Department of Organic Chemistry Faculty of Chemistry Bu-Ali Sina University 

出 版 物：《催化学报》 (Cuihua Xuebao Chin. J. Catalysis)

年 卷 期：2015年第36卷第4期

页      面：620-625页

核心收录：

学科分类：081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：the Bu-Ali Sina University  Hamedan 6517838683 Iran for the financial support of this work 

主　　题：多相催化剂 三嗪衍生物 纳米尺寸 合成 三氯化铁 原子吸收测定 连续反应 羰基化合物 

摘      要：The one-pot synthesis of a series of 1,2,4-triazines from the reactions of semicarbazide or thiosemi-carbazide with various α,β-dicarbonyl compounds under reflux conditions in a EtO H-H2O (9:1) mixture as solvent and catalyzed by nano-sized silica supported FeCl3(FeCl3@SiO 2) was investigat-ed. The FeCl3 content of the catalyst was measured by atomic absorption to get the adsorption ca-pacity. The reactions gave high yields of the product and the catalyst was easily separated and re-used for successive reaction runs without significant loss of activity.