Nano-sized silica supported FeCl3 as an efficient heterogeneous catalyst for the synthesis of 1,2,4-triazine derivatives
摘要:
The one-pot synthesis of a series of 1,2,4-triazines from the reactions of semicarbazide or thiosemicarbazide with various alpha,beta-dicarbonyl compounds under reflux conditions in a EtOH-H2O (9:1) mixture as solvent and catalyzed by nano-sized silica supported FeCl3 (FeCl3@SiO2) was investigated. The FeCl3 content of the catalyst was measured by atomic absorption to get the adsorption capacity. The reactions gave high yields of the product and the catalyst was easily separated and reused for successive reaction runs without significant loss of activity. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
Nano-sized silica supported FeCl3 as an efficient heterogeneous catalyst for the synthesis of 1,2,4-triazine derivatives
作者:Davood Habibi、Somayyeh Vakili
DOI:10.1016/s1872-2067(15)60829-4
日期:2015.4
The one-pot synthesis of a series of 1,2,4-triazines from the reactions of semicarbazide or thiosemicarbazide with various alpha,beta-dicarbonyl compounds under reflux conditions in a EtOH-H2O (9:1) mixture as solvent and catalyzed by nano-sized silica supported FeCl3 (FeCl3@SiO2) was investigated. The FeCl3 content of the catalyst was measured by atomic absorption to get the adsorption capacity. The reactions gave high yields of the product and the catalyst was easily separated and reused for successive reaction runs without significant loss of activity. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.