Adding a certain compound to certain chemical reactions, such as: 2302-25-2, name is 4-Bromo-1H-imidazole, belongs to imidazoles-derivatives 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 2302-25-2, HPLC of Formula: C3H3BrN2
To a solution of 4-bromo- l /-imidazole (1.00 g, 6.80 mol) in dry DMF (10 mL) was added solid potassium carbonate (1.13 g; 8.16 mmol; 1.20 eq). After stirring 40min at room temperature, a solution of allyl bromide (882 mg; 7.14 mmol; 1.05 eq) in dry DMF (10 mL) was added dropwise. The resulting mixture was stirred at room temperature for 6h. Thereafter the reaction mixture was diluted with water, extracted with ethyl _ _ acetate, the combined organic layers were dried (MgSO i) and concentrated in vacuo. The oily residue was purified by chromatography over silica gel, eluted with a mixture of w-heptane/ethyl acetate (100:0 to 80:20). After evaporation of the solvent 892 mg (63%) of a mixture comprising 90 mol% l-allyl-4-bromo-imidazole and 10 mol% of its 5-bromo regioisomer were obtained as pale yellow oil. MS (EI): 187.0 ([M]+)
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Reference:
Patent; BAYER CROPSCIENCE AKTIENGESELLSCHAFT; BAYER AKTIENGESELLSCHAFT; COQUERON, Pierre-Yves; BERNIER, David; GENIX, Pierre; MILLER, Ricarda; NAUD, Sebastien; WITTROCK, Sven; BRUNET, Stephane; KENNEL, Philippe; MEISSNER, Ruth; WACHENDORFF-NEUMANN, Ulrike; GOeRTZ, Andreas; (104 pag.)WO2018/60088; (2018); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem