Acta Cryst. (2005). E61, o4034-o4036  [ doi:10.1107/S1600536805034240 ]

The mono-(S)--methylbenzylammonium salt of (R)-homocitric lactone

Y. Jia, D. R. J. Palmer and J. W. Quail

Abstract: The title salt, (S)--methylbenzylammonium (R)-2-carboxymethyl-5-oxofuran-2-carboxylate, C₈H₁₂N⁺·C₇H₇O₆^-, was crystallized by resolution of a racemic mixture of lactones as the diastereomeric salt to separate the R anion, which is formed by the loss of a proton from the carboxylic acid group on the 2-position of the lactone ring. The crystal structure has a packing index of 69.5%, indicating very efficient packing.

Online 10 November 2005

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