Sodium hydroxide (III)-mediated coupling of phenol (I) with glyoxalic acid (II) gives the sodium salt (IV) of p-hydroxymandelic acid.doi:10.1002/chin.199003278POWAR, N. P.CHANDALIA, S. B.WILEY‐VCH Verlag GmbHChemInformSynthesis of DL-2-(p-hydroxyphenyl)glycine by the ammonolysis of p-...