Related Products of 120781-02-4, These common heterocyclic compound, 120781-02-4, name is Methyl 2-bromo-1-methyl-1H-imidazole-5-carboxylate, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
To a solution of 1-[4-(4,4,5,5-tetramethyl)-[1,3,2]-dioxaborolan-2-yl]-benzyl-1H-benzoimidazole (0.527 g, 1.5 mmol) and 2-bromo-3-methyl-3H-imidazole-4-carboxylic acid methyl ester (Anichem LLC, 0.328 g, 1.5 mmol) in anhydrous DMF (5 mL) under nitrogen was added Pd(dppf)2Cl2 (53 mg, 0.065 mmol) and cesium carbonate (0.786 g, 2.4 mmol) and the reaction mixture was heated to 80 C. and allowed to stir for 7 h. The reaction mixture was cooled to room temperature, diluted with ethyl acetate, and the solids filtered off. The filtrate was washed with water, dried (Na2SO4) and the solvent removed under reduced pressure. Purification by flash chromatography (silica, dichloromethane/methanol 99: 1?97:3) provided the title compound (40%). LCMS (ESI+) 347.2 (MH+).
Statistics shows that Methyl 2-bromo-1-methyl-1H-imidazole-5-carboxylate is playing an increasingly important role. we look forward to future research findings about 120781-02-4.
Reference:
Patent; Wyeth; US2009/23707; (2009); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem