- 作者: 李功固
- 作者服務機構: Institute of Nuclear Science, Tsing Hua University, Hsin Chu, Taiwan, China
- 中文摘要:
(-)-Dimethyl 2-cyano-2-methylsuccinate ((-)-IIIa) was synthesized from menthyl cyanoacetate ((-)-I, and the absolute configuration of which was elucidated as (S)-configuration by chemical correlation to the known (R)(+)-β-methylterbic acid ((R)(+)-VII). (-)-Dimethyl 2-carbamoyl-2-methylsuccinate ((-)-IV) and (-)-methyl 3-methyl-2,5-dioxo-3-pyrrolidinecarboxlate ((-)-V) are also conformed as belonging to (S)-configuration and (+)-3-(1-hydroxy-1-methylethyl)-3-methyl-2,5-pyrrolidinedione ((+)-VI) is belonging to (R)-configuration.
Preliminary experiments on racemic compounds are also described. - 英文摘要: --
- 中文關鍵字: --
- 英文關鍵字: --