Triethylamine → HCID 53871632, compound

Participants

Reaction Steps

In the course of approximately 5 minutes a solution of 1.9 ml (21 mmol) of chloro-oxalic acid methyl ester in 8 ml of methylene chloride is added dropwise to a solution, cooled to 0°, of 7.5 g (21 mmol) of 3-[3-(4-acetyl-3-hydroxy-2-n-propylphenoxy)-propoxy]-6-methylaniline and 3.0 g (21 mmol) of triethylamine in 60 ml of methylene chloride. The reaction mixture is stirred for 90 minutes at room temperature, is poured onto ice-water and the organic phase is separated off. The methylene chloride phase is washed with water, dried over sodium sulphate and concentrated under reduced pressure. Crystallisation of the residue from methylene chloride/ether yields N-{3-[3-(4-acetyl-3-hydroxy-2-n-propylphenoxy)-propoxy]-6-methylphenyl}-oxamic acid methyl ester having a melting point of 125°-127°.

Provenance & Evidence