Process for production of 3-(hydroxyphenylphosphinyl)-propanoic acid

摘要

3-(Hydroxyphenylphosphinyl)-propanoic acid is produced by reacting phenylphosphonous dichloride with a 0 to 20 percent molar excess of acrylic acid at a temperature of 60 DEG to 150 DEG C., heating the reaction mixture at a temperature of 115 DEG to 150 DEG for at least 45 minutes, and then hydrolyzing the mixture to obtain the desired product.