Synthetic Route of 402-52-8, 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. 402-52-8, name is 1-Methoxy-4-(trifluoromethyl)benzene, This compound has unique chemical properties. The synthetic route is as follows.
Example 17 3-14- [3- (2-BENZOYL-4-TRIFLUOROMETHYL-PHENOXY)-BUTOXY]-2-METHYL-PHENYLL-PROPIONIC acid Step A (2-Methoxy-5-trifluoromethyl-phenyl)-phenyl-methanone; A 1.6 M solution of n-BuLi in hexanes (0.51 mL, 0.82 mmol) is added dropwise for about 20 min to N, N, N, N-tetramethylenediamine (0.12 mL, 0. 80 mmol) at -20C UNDER N2 After 20 min, p-trifluoromethylanisole (0.10 g, 0.57 mmol) in THF (0.2 mL) is added dropwise for 15 min at-20 C under N2. After IH, N-methoxy-N-methyl- benzamide (0.12 mL, 0.79 mL) is added dropwise in 10 min AT-20 C UNDERN2. After 2h, a 1 M HCl (0.9 mL) is added. The mixture is extracted with EtOAc, and organic phases are combined and washed with saturated aqueous sodium chloride, and then dried over magnesium sulfate, filtered and concentrated under reduced pressure. Purification by flash chromatography, silica, hexanes: EtOAc (90: 10) provides the title compound (0.09 g, 0.32 mmol, 57%): ES+ (M/E) 281.08 (M+H) + ; RR 0.20 hexanes : EtOAc (90: 10).
The chemical industry reduces the impact on the environment during synthesis 1-Methoxy-4-(trifluoromethyl)benzene. I believe this compound will play a more active role in future production and life.
Reference:
Patent; ELI LILLY AND COMPANY; WO2005/19151; (2005); A1;,
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