Adding a certain compound to certain chemical reactions, such as: 7343-33-1, name is 5-Bromo-1H-1,2,4-triazole, belongs to triazoles compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 7343-33-1, SDS of cas: 7343-33-1
To a 100 mL round bottomed flask, equipped with a stir bar, was added copper(I) iodide (0.397 g, 2.08 mmol), 3-bromo-1H-1,2,4-triazole (4.62 g, 31.2 mmol), and cesium carbonate (6.79 g, 20.83 mmol), as solids. These solids were diluted with anhydrous dimethyl sulfoxide (34.7 mL). Then 1-iodo-4-(trifluoromethoxy)benzene (1.65 mL, 10.4 mmol) was added as a liquid. The flask was placed under nitrogen atmosphere, and the suspension was heated to an internal temperature of 100¡ã C. for 20 hours. The reaction mixture was allowed to cool to room temperature and filtered through a pad of Celite?, washing with excess ethyl acetate (200 mL). The filtrate was poured into a brine solution (200 mL), and the layers were partitioned. The aqueous phase was extracted with additional ethyl acetate (2*100 mL). The combined organic layers were dried over anhydrous magnesium sulfate, filtered, and concentrated. The resulting residue was purified via flash column chromatography using 10-50percent ethyl acetate/hexanes as eluent to afford the title compound as a white solid (1.80 g, 54percent): 1H NMR (400 MHz, DMSO-d6) delta 9.35 (s, 1H), 7.97 (d, J=8.9 Hz, 2H), 7.60 (d, J=8.4 Hz, 2H); 19F NMR (376 MHz, DMSO-d6) delta -57.06; ESIMS m/z 308, 310 ([M+H]+).
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Reference:
Patent; DOW AGROSCIENCES LLC; Fischer, Lindsey G.; Baum, Erich W.; Crouse, Gary D.; DeAmicis, Carl; Lorsbach, Beth; Petkus, Jeff; Sparks, Thomas C.; Whiteker, Gregory T.; US2014/274688; (2014); A1;,
1,2,3-Triazole – Wikipedia,
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