Chromatographische Enantiomerentrennung von 3,6-Heptanophthalid – ein Beitrag zur Frage der absoluten Konfiguration von [n]Paracyclophancarbonsäuren

Abstract

The partial chromatographic separation of the racemic title compound 1 (ee = 40%) was achieved on triacetylcellulose with ethanol using a recycling technique. Comparison of the CD spectra of (+)22365-1 with (+)22365-2 leads to the absolute configuration (P) for both compounds. This assignment is of interest in view of earlier configurational assignments for [n]paracyclophanecarboxylic acids.