期刊
MOLECULES
卷 27, 期 22, 页码 -出版社
MDPI
DOI: 10.3390/molecules27227784
关键词
click chemistry; mechanochemical synthesis; 1; 2; 3-triazole; cycloaddition reaction; Rufinamide synthesis; solvent-free
资金
- Ministry of Science and Higher Education of the Russian Federation [075-15-2022-1118]
Highly regiospecific azide-alkyne cycloaddition (AAC) reactions have been achieved under mechanochemical conditions. Cu beads were used for efficient synthesis of complex compounds without generating unwanted byproducts. High-speed ball milling strategy was applied for the synthesis of pharmaceutical agents and structural confirmation.
Highly regiospecific, copper-salt-free and neat conditions have been demonstrated for the 1,3-dipolar azide-alkyne cycloaddition (AAC) reactions under mechanochemical conditions. A group of structurally challenging alkynes and heterocyclic derivatives was efficiently implemented to achieve highly functionalized 1,4-disubstituted-1,2,3-triazoles in good to excellent yield by using the Cu beads without generation of unwanted byproducts. Furthermore, the high-speed ball milling (HSBM) strategy has also been extended to the synthesis of the commercially available pharmaceutical agent, Rufinamide, an antiepileptic drug (AED) and its analogues. The same strategy was also applied for the synthesis of the Cl-derivative of Rufinamide. Analysis of the single crystal XRD data of the triazole was also performed for the final structural confirmation. The Cu beads are easily recoverable from the reaction mixture and used for the further reactions without any special treatment.
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