Triethylamine → 4-Imidazolidinone, 1-ethyl-2-thioxo-3-[4-(trifluoromethoxy)phenyl]-

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Reaction Steps

The title compound was prepared by the procedure described in Example 4 using 9.2 g of N-ethyl glycine, 10.9 g of 4-trifluoromethoxyphenyl-isothiocyanate, 10.1 g of triethylamine, and 150 mL of methylene chloride. Purification was achieved by flash chromatography on silica gel (methylene chloride). Title compound (4.6 g) was obtained as a creamy solid, m.p. 116°-119° C. Anal. Calcd. for. C12H11F3N2O2S: C, 47.37; H, 3.64; N, 9.21. Found: C, 47.20; H, 3.50; N, 9.13. Mass spectrum (EI, M.+) m/z 304.

Provenance & Evidence