(±)-1,2-Diphenylethylenediamine (DPEDA) was efficiently resolved by the fractional crystallization of its diastereomeric salts with optically active mandelic acid. 1H-NMR spectrum of N-monoacylated DPEDA with an optically active derivatizing agent showed that DPEDA thus obtained was optically pure.
CITATION STYLE
Saigo, K., Kubota, N., Takebayashi, S., & Hasegawa, M. (1986). Improved Optical Resolution of (±)-1,2-Diphenylethylenediamine. Bulletin of the Chemical Society of Japan, 59(3), 931–932. https://doi.org/10.1246/bcsj.59.931
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