Hydrochloric Acid → n,n,-Diethyl-4-[2-(4-fluorophenyl)-2-oxoethyl]benzamide

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Reaction Steps

To a solution of 4-[2-(4-fluorophenyl)-2-oxoethyl]benzoic acid (0.560 g, 2.17 mmol, Example 3, Step 1), triethylamine (0.620 ml), and diethylamine (0.230 ml) in dichloromethane (5 ml) at room temperature was added bis(2-oxo-3-oxazolidinyl)-phosphinic chloride (0.560 g). After 3 hours, HCl 1M (10 ml) was added and the product was extracted with dichloromethane (10 ml). The organic phase was washed with brine, dried over sodium sulfate, filtered and evaporated to dryness. The residue was purified by flash chromatography using hexane/ethyl acetate 50% giving 0.44 g of the title compound.

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