1-[2-Chloro-4-(4-chlorophenoxy)phenyl]-2-(1H-1,2,4-triazol-1-yl)ethanone → HCID 71226383, compound

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Reaction Steps

To a solution of the above-mentioned ethanone (75.5 g, 216.8 mmol) dissolved in THF (450 mL) was added a solution of LaCl3.2LiCl (395.9 mL, 0.6 M in THF) at room temperature and stirred for 1 hour. The resulting solution was added dropwise to 1-propynylmagnesium bromide (650.5 mL, 0.5M in THF) at room temperature. After 1 hour at room temperature, the resulting mixture was quenched with a 10% aqueous solution of HCl and extracted with MTBE. The organic phase was washed with brine, dried and evaporated. The crude compound was stirred in a solution of MTBE/diisopropylether and filtrated to eliminate the starting material. The mother liquors were evaporated and purified on silica gel to give the title compound as a beige solid (31.1 g, HPLC-MS2 Rt=1.15 min, masse=388, m.p=137° C.).

Provenance & Evidence