عنوان مجله
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APPLIED CATALYSIS A-GENERAL
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چکیده
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This paper discloses the assembly and characterization of an advanced heterogeneous catalyst formulated as
CuI@SBA-15/PrEn/ImPF6. It is based on a mesoporous silica SBA-15 skeleton which bears a supported ethylenediamine/CuI complex and covalently anchored imidazolium/PF6 ionic liquid. This catalyst was successfully
applied in tandem methods for triazole synthesis starting from different substrate pairs: aryl halides and aryl
acetylenes (method A), arylboronic acids and aryl acetylenes (method B). The CuI@SBA-15/PrEn/ImPF6 catalyst
showed high activity (up to 90% yields of triazole products under optimized reaction conditions), high stability
and no appreciable leaching of CuI owing to its strong binding via the coordination with PrEn functionality.
Therefore, the catalyst can be recycled for several consecutive runs (7–14 cycles) in this new synthetic method.
For both methods A and B, specific types of green approaches were developed and the favorable products were
produced in high yields.
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