Hydrogen Peroxide → HCID 59849208, compound

Participants

Reaction Conditions

Reaction Steps

In a 2 L, three necked, round-bottomed flask were charged 892 mL (0.45 mol) of 9-BBN (0.5M) and 100 mL of THF. After cooling to 0° C., 71 g (0.3 mol) of 2-allyl-3-fluoro-6-nitrobenzoic acid methyl ester in 150 mL of THF was added over 30 minutes and the mixture was stirred at room temperature for 5 hours. After cooling to 0° C., 700 mL of 1M NaOH aq was added into the reaction mixture, which was stirred for 30 minutes. To the mixture, 200 mL of hydrogen peroxide (35%) was added over 30 minutes then stirred at room temperature for 1 hours. The mixture was extracted twice with ethyl acetate. The combined organic layers were washed with water, a solution of sodium thiosulfate and brine, and was dried over sodium sulfate. The solvent was removed under reduced pressure to give 104 g of 3-fluoro-2-(3-hydroxy-propyl)-6-nitro-benzoic acid methyl ester as orange oil. The crude product was used for the next reaction.

Provenance & Evidence