Hydrochloric Acid → 2,5,8,11-Tetraoxatridecan-13-oic acid

Participants

Reaction Steps

The product of step (a) (1.5 g) was stirred in a sodium hydroxide solution (0.1M, 30 mL) for 5 hours. The reaction mixture was adjusted to pH 2 by the addition of hydrochloric acid (2M) and then diluted with brine (300 mL). This was extracted with dichloromethane (2×300 mL) and the combined organic layers were dried and the solvent was removed in vacuo. Purification by chromatography on silica gel (Biotage), eluting with 10% methanol in dichloromethane gave the title compound as a clear oil (900 mg).

Provenance & Evidence