2-Chloro-5-nitrobenzoic acid → HCID 881114, compound

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Reaction Steps

A solution of 10 g (0.050 mmol) of 2-chloro-5-nitrobenzoic acid in 60 ml of THF was cooled over an ice bath, followed by the addition of 10 g (0.064 mmol) of CDI. The thus-obtained mixture was stirred at room temperature for 1 hour. To the solution, 12 ml (0.11 mmol) of N,N-dimethylethylenediamine were added dropwise, followed by stirring at room temperature for 3 hours. After the solvent was distilled out, the residue was dissolved in ethyl acetate. After the solution so obtained was washed with a 10% aqueous solution of sodium hydrogencarbonate, magnesium sulfate was added to the solution to dry the same. The ethyl acetate was distilled out under reduced pressure and the residue was purified by chromatography on a silica gel column (ethyl acetate), whereby 10 g of the title compound were obtained as a colorless oil (yield: 74%).

Provenance & Evidence