Potassium Carbonate → HCID 70513893, compound

Participants

Reaction Steps

48.6 g of 4-(2-benzthiazolyloxy)-phenol, 33.1 g of potassium carbonate and 50.2 g of 2-bromopropionyl-lactic acid methyl ester in 250 cc of acetonitrile are refluxed for 8 hours. After cooling the salt precipitate is filtered off and the acetonitrile is distilled off. The residue is fraction-distilled, yielding 68 g (82.5% of theory) of 2-[4-(2-benzthiazolyloxy)-phenoxy]-propionyl-lactic acid methyl ester, b.p. 218° to 220° C./0.01 mbar. ##STR11##

Provenance & Evidence