Potassium Carbonate → Methyl 2-[2-[3-fluoro-4[1-(1-methylethyl)imidazolidin-2,4-dion-3-yl]phenoxymethyl]-5-chloro-phenoxy]propionate

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Reaction Steps

By the method of Example 1, Step I, 0.60 g (0.0024 mole) of 1-(1-methylethyl)-3-(2-fluoro-4-hydroxy-phenyl)imidazolidin-2,4-dione, 1.24 g (0.0048 mole) of methyl 2-(2-chloromethyl-5-chlorophenoxy)propionate (Example 2, Step E), and 0.5 g (0.0036 mole) of potassium carbonate were reacted in 25 mL of 2-butanone. After purification, 1.04 g of methyl 2-[2-3-fluoro-4[1-(1-methylethyl)imidazolidin-2,4-dion-3-yl]phenoxymethyl]-5-chlorophenoxy]propionate was isolated as a yellow oil. The NMR and IR spectra were consistent with the proposed structure. NMR: 1.24 (d, 6H, JHH =8 Hz); 1.64 (d, 3H, JHH =8 Hz); 3.68 (s, 3H); 3.96 (s, 1H); 4.44 (septet, 1H, JHH =8.0 Hz); 5.04 (q, 1H, JHH =8.0 Hz); 5.24 (s, 2 H); 6.80-7.34 (m, 5H) .

Provenance & Evidence