期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 402, 期 -, 页码 100-108出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molcata.2015.03.006
关键词
Mesoporous silica KIT-5; Green solvent; Cu-catalyzed azide/alkyne click reaction; Copper heterogeneous; Nanocatalys; Density functional theory calculations
资金
- Iran National Science Foundation (INSF)
A novel heterogeneous copper nano catalyst supported on modified silica mesopore KIT-5 was successfully prepared. The 3-aminopropyltriethoxysilane (APTES) on KIT-5 was coordinated with copper(I) and accurately characterized. In addition a comparative survey on the metal-ligand interactions in the syntheses of catalyst in two different solvents via density functional theory calculations was performed. A one-pot procedure for syntheses of 1,4-disubstituted 1,2,3-triazole derivatives via a three-component reaction between terminal alkynes, alkyl halides, and sodium azide, namely click reaction in the presences of 3 mol% nanoparticles copper/APTES-KIT-5 (Cu/AK) as a catalyst was developed to give the products in good to excellent yields. This catalyst showed high catalytic activity in water as a green solvent. This reaction was performed under open air conditions and required no special reaction conditions and chromatographic separation for purification. (C) 2015 Elsevier B.V. All rights reserved.
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