Bulletin of the Chemical Society of Japan p. 824 - 826 (1987)
Update date:2022-08-10
Topics:
Shiraiwa, Tadashi
Sado, Yujin
Fujii, Shigeru
Nakamura, Mitsuhiro
Kurokawa, Hidemoto
A solution of equimolar mixture of (+/-)-phenylsuccinic acid ((+/-)-PSA) and (-)-proline ((-)-Pro) in ethanol or its suspension in 2-propanol selectively gave a salt composed of 1-molar amount of PSA and 2-molar amount of (-)-Pro.The salt purified gave (+)-PSA with an optical purity of about 100percent.A salt composed of equimolar amounts of PSA and (-)-Pro was obtained from the ethanolic mother liquor, and gave (-)-PSA with an optical purity of 98percent.
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