Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 24398-88-7, name is Ethyl 3-bromobenzoate, This compound has unique chemical properties. The synthetic route is as follows., Formula: C9H9BrO2
Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 24398-88-7, name is Ethyl 3-bromobenzoate, This compound has unique chemical properties. The synthetic route is as follows., Formula: C9H9BrO2
EXAMPLE 11. Synthesis of Ethyl 3-(5-Aminopyrimidin-2-ylamino)Benzoate(Intermediate 6); [0140] To a solution of 2-amino-5-nitropyrimidine (550 mg, 3.9 mmol) in 35 mL anhydrous 1,4-dioxane were added ethyl 3-bromobenzoate (1.8 g, 7.9 mmol), Xantphos, (230 mg, 0.4 mmol), Pd2(dba)3 (180 mg, 0.2 mmol) and Cs2CO3 (2.6 g, 8 mmol). The reaction mixture was stirred at 1000C for 5 h under argon. The solvent was removed under reduced pressure. The resulting solution was extracted with CHCl3 (3 x 50 mL) and saturated NaHCO3 (50 mL). The organic layer was separated, washed with brine, dried over Na2SO4 and filtered. The organic solvent was removed and the crude product was purified by silica gel column with CHCl3 as an eluent. The precipitated yellow solid was isolated by washed with chloroform and dried in vacuo (700 mg, 62%). 1H NMR (DMSO- de): delta 1.33 (t, J= 7.1 Hz, 3H), 4.33 (q, J = 7.1 Hz, 2H), 7.54 (t, J = 8.0 Hz, IH), 7.60-7.90 (m, IH), 7.95-8.10 (m, IH), 8.37 (t, J= 1.9 Hz, IH)3 9.26 (s, 2H)5 11.00 (s, IH).[0141] The above product was hydrogenated in 100 mL methanol/ethyl acetate (v/v: 1:1) using Pd/C (10%, 1 g) for 2 h. The palladium catalyst was removed by filtration, and the solvent was evaporated. The crude product was purified by silica gel column with 5% CH3OH / CHCl3 as an eluent to yield an off-white solid. MS (ES+): m/z 259 (M+H)+.
According to the analysis of related databases, 24398-88-7, the application of this compound in the production field has become more and more popular.
Reference:
Patent; TARGEGEN, INC.; WO2008/8234; (2008); A1;,
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