A facile method for synthesis of (R)-(-)- and (S)-(+)-homocitric acid lactones and related α-hydroxy dicarboxylic acids from D- or L-malic acid

　　Peng-Fei Xu, Tsuyoshi Matsumoto, Yasuhiro Ohkia and Kazuyuki Tatsumia*

　　https://doi.org/10.1016/j.tetlet.2005.03.180