| abstract |
The present invention relates to a method for preparing an α-ketocarboxylic acid derivative, and more particularly, by reacting an α-hydroxycarboxylic acid derivative with hypobromic acid (HOBr), which is widely used as an important raw material in the synthesis of agrochemicals and pharmaceuticals. The present invention relates to a new preparation method for preparing the α-ketocarboxylic acid derivative represented by the following formula (1).n n n n n n n n n n In Chemical Formula 1, R 1 , R 2, and n are as defined in the detailed description of the invention, respectively. |