Chemistry Letters p. 2041 - 2042 (1987)
Update date:2022-08-11
Topics:
Shiraiwa, Tadashi
Kataoka, Kazuo
Kurokawa, Hidemoto
A mixture of DL-4-thiazolidinecarboxylic acid (DL-THC), (+)- or (-)-tartaric acid ((+)- or (-)-TA), and salicylaldehyde in acetic acid was stirred at 80 deg C to give a salt composed of equimolar amounts of L-THC and (-)-TA or that of D-THC and (+)-TA.D- and L-THC with optical purity of 97-99percent were obtained from these salts in 68-78percent yield.
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