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Acta Crystallogr Sect E Struct Rep Online. 2010 February 1; 66(Pt 2): e17.
Published online 2010 January 30. doi:  10.1107/S1600536810002266
PMCID: PMC2979850

(4R)-Ethyl 4-(4-chloro­phen­yl)-2-hydr­oxy-5-oxo-2,3,4,5-tetra­hydro­pyrano[3,2-c]chromene-2-carboxyl­ate. Corrigendum


The absolute configuration in the title of the paper by Wang, Zhang, Xu & Zhang [Acta Cryst. (2010), E66, o217] is corrected.

In the paper by Wang et al. (2010) [triangle], the chemical name given in the Title should be ‘(2R,4R)-Ethyl 4-(4-chloro­phen­yl)-2-hydr­oxy-5-oxo-2,3,4,5-tetra­hydro­pyrano[3,2-c]chro­mene-2-carboxyl­ate’. The absolute configuration was established by anomalous-dispersion effects in diffraction measurements on the crystal. The revised scheme is shown below.

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Articles from Acta Crystallographica Section E: Structure Reports Online are provided here courtesy of International Union of Crystallography