Application of 870837-18-6, These common heterocyclic compound, 870837-18-6, name is 3-Methoxy-4-(4-methyl-1H-imidazol-1-yl)benzaldehyde, 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 THF (40 mL) solution of 3-methoxy-4-(4-methyl-1H-imidazol-1-yl)benzaldehyde (4.00 g) obtained in Example 1, diethylphosphonoacetic acid ethyl ester (4.00 mL) and lithium hydroxide monohydrate (932 mg) were added one by one, and the reaction solution was agitated overnight at room temperature. 2N sodium hydroxide solution (30 mL) and ethanol (5 mL) were added to the reaction solution after confirming disappearance of the starting materials, and the reaction solution was agitated at room temperature overnight. The reaction solution was cooled to 0 C., 2N hydrochloric acid (30 mL) was added to the reaction solution, and the precipitation consequently deposited was separated by filtering with Kiriyama funnel. The obtained precipitation was washed with water and ethyl acetate, and 4.61 g of the title compound was obtained. The physical properties of the compound are as follows. 1H-NMR (DMSO-d6) delta (ppm): 7.81 (s, 1H), 7.60 (d, J=16 Hz, 1H), 7.56 (s, 1H), 7.39 (d, J=8.0 Hz, 1H), 7.35 (d, J=8.0 Hz, 1H), 7.16 (s, 1H), 6.66 (d, J=16 Hz, 1H), 3.88 (s, 3H), 2.15 (s, 3H).
The synthetic route of 870837-18-6 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Eisai Co., Ltd.; US2006/4013; (2006); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem