4-(Trifluoromethyl)thiobenzamide → [5-Methyl-2-(4-trifluoromethyl-phenyl)-thiazol-4-yl]acetic acid ethyl ester

関与物質

反応条件

反応手順

To a solution of 4-trifluoromethyl-benzene-thioamide (1.845 g, 9 mmol) in ethanol (15 mL, 200 proof) add ethyl-4-bromo-3-oxo-pentanoate (2.07 g, 9 mmol). Seal this solution warm the solution to 170° C. in a Personal Chemistry™ microwave oven and stir at this temperature for 20 min. Cool the resulting solution to room temperature, concentrate under reduced pressure and purify the residue by flash chromatography (elute with 30% ethyl acetate/10% dichloromethane in heptane) and obtain the title compound as a white solid (1.4 g). MS (ESI) m/z 330 (M+H); H1 NMR (CDCl3) δ1.87 (bs, 1H), 2.49 (s, 3H), 4.86 (s, 2H), 7.67 (d, J=8 Hz, 2H), 8.02 (d, J=8 Hz, 2H).

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