Electric Literature of 33468-69-8, 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. 33468-69-8 name is 4-(Trifluoromethyl)-1H-imidazole, 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.
Step A: (+/-)-methyl 4-(3-methyl-1-(4-(4-(trifluoromethyl)-1H-imidazol-1-yl)phenyl)butoxy)benzoate Dimethylsulfoxide (1.5 mL) was added to a screw-top reaction vial charged with Intermediate (34) (128 mg, 0.339 mmol), 4-(trifluoromethyl)imidazole (55 mg, 0.406 mmol), copper (I) iodide (13 mg, 0.068 mmol), quinolin-8-ol (9.9 mg, 0.068 mmol), and potassium carbonate (92 mg, 0.67 mmol). The vial was evacuated and back-filled with nitrogen repeatedly then heated with stirring to 100 C. overnight. After 18 hours the reaction was diluted with saturated ammonium chloride (20 mL) and ethyl acetate (20 mL). The phases were separated and the organic layer was washed with water (2*20 mL) and brine (5 mL). The organics were dried over magnesium sulfate, filtered and concentrated. Purification by column chromatography (0-50% ethyl acetate in heptanes) gave (+/-)-methyl 4-(3-methyl-1-(4-(4-(trifluoromethyl)-1H-imidazol-1-yl)phenyl)butoxy)benzoate (65 mg, 44%) as a clear oil. 1H NMR (400 MHz, CDCl3, delta): 7.94-7.89 (m, 2H), 7.84 (s, 1H), 7.58 (s, 1H), 7.53-7.48 (m, 2H), 7.40-7.36 (m, 2H), 6.89-6.84 (m, 2H), 5.31 (dd, J=9, 4.6 Hz, 1H), 3.86 (s, 3H), 2.04 (m, 1H), 1.96-1.83 (m, 1H), 1.67-1.59 (m, 1H), 1.04 (d, J=6.6 Hz, 3H), 0.99 (d, J=6.6 Hz, 3H). MS (M+1): 433.0.
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 4-(Trifluoromethyl)-1H-imidazole, and friends who are interested can also refer to it.
Reference:
Patent; PFIZER INC.; US2012/202834; (2012); A1;,
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem