| 摘要 |
Glyceric acid compounds of the formula (I) R<1>R<2>C(OH)-CR<3>(OH)-COOX (I) where R<1>, R<2 >and R<3 >are independently hydrogen, C1-12-alkyl, C6-12-aryl, C7-13-alkaryl or C7-13-aralkyl and X is hydrogen, an alkali metal, an alkaline earth metal/2 or NH4, are prepared by saponification of glycidic acid compounds of the formula (II) where Y is NH2 or OR<4 >in which R<4 >is C1-12-alkyl or C7-13-aralkyl, with ring-opening addition of water onto the epoxide ring. Preferably, Y is NH2 and the glycidamide of the formula (II) which is used is prepared by reacting acrylonitriles of the formula (III) R<1>R<2>C=CR<3>CN (III) with hydrogen peroxide.
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