Reference of 870837-70-0, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 870837-70-0 name is 4-(1H-Imidazol-1-yl)-3-methoxybenzaldehyde, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.
General synthesis of curcumin analogues 25-34 from corresponding benzaldehyde precursors was carried out by modified literature methods (Scheme 5). The appropriate vanillin derivative (1 equiv) and boric anhydride (0.6 equiv), dissolved in anhydrous DMF in a flask which was thoroughly flushed with nitrogen before use, were stirred at room temperature. Under nitrogen, 2,4-pentanedione (0.6 equiv) and 2,2-dimethoxypropane (1 equiv) or tributyl borate (2 equiv) were added dropwise. The mixture was stirred and heated to a temperature of 70 C under nitrogen. About 30 min later, n-butylamine (0.2 equiv) was added dropwise slowly under nitrogen, and the mixture was allowed to stir at 70 C for 2-4 h. At the end of the reaction, the mixture was hydrolyzed by adding hot (70 C) aqueous 5% acetic acid and stirred until it cooled down. The mother liquor was extracted three times with EtOAc, and the combined organic layers were washed three times, dried over anhydrous Na2SO4, and filtered. After removal of the solvent under reduced pressure, the residue was purified by silica gel column chromatography.
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 4-(1H-Imidazol-1-yl)-3-methoxybenzaldehyde, and friends who are interested can also refer to it.
Reference:
Article; Zhang, Qin; Zhong, Ying; Yan, Lin-Na; Sun, Xun; Gong, Tao; Zhang, Zhi-Rong; Bioorganic and Medicinal Chemistry Letters; vol. 21; 3; (2011); p. 1010 – 1014;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem