Application of 256518-97-5, In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 256518-97-5 as follows.
Step 5: Under nitrogen protection, 2-chloro-6-iodo-1H-benzimidazole (2.34 g, 8.4 mmol) was added to the reaction vessel.Isopropyl boric acid (0.81 g, 9.2 mmol), tetrakistriphenylphosphine palladium (0.05 g, 0.04 mmol),Potassium carbonate (1.74 g, 12.6 mmol), toluene 60 mL, ethanol 20 mL, and distilled water 20 mL were stirred at 120 C for 3 h.After the end of the reaction, the reaction was quenched with distilled water, extracted with ethyl acetate and dried over MgSO 4The solvent was evaporated under reduced pressure, and then purified by silica gel column chromatography to afford compound 35-5 (1.26 g, 77%).
According to the analysis of related databases, 256518-97-5, the application of this compound in the production field has become more and more popular.
Reference:
Patent; Changchun Hai Purunsi Technology Co., Ltd.; Dong Xiuqin; Cai Hui; (23 pag.)CN109305943; (2019); A;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem