Hydrochloric Acid → HCID 18539790, compound

Participants

Reaction Steps

At 5° C., a solution of 2.3 g (7 mmol) of methyl 2-chloro-3-(4,5-dihydro-3-isoxazolylmethyl)-4-sulfonylmethylbenzoate in 40 ml of tetrahydrofuran is treated with 0.3 g (13 mmol) of lithium hydroxide. The reaction mixture is taken up in 300 ml of diethyl ether and adjusted to pH 1 using 10% strength aqueous hydrochloric acid. The aqueous phase is extracted with diethyl ether. The combined organic phases are dried over sodium sulfate, filtered and freed from the solvent under reduced pressure. Yield: 1.7 g; 1H NMR, δ [ppm], DMSO-d6; 3.0 (t), 3.3 (s), 4.2 (t), 4.3 (s), 7.8 (d), 8.1 (d).

Provenance & Evidence