作者: Werner Tochtermann , Gese Olsson , Albrecht Mannschreck , Georgine Stühler , Günther Snatzke
关键词: Lactone 、 Bicyclic molecule 、 Carboxylic acid 、 Cyclophane 、 Ethanol 、 Absolute configuration 、 Chemistry 、 Circular dichroism 、 Enantiomer 、 Stereochemistry 、 Inorganic chemistry
摘要: Synthesis of Medium and Large Rings, XXVII1. - Chromatographic Separation the Enantiomeric 3.6-Heptanophthalides. A Contribution to Problem Absolute Configuration [nJ Paracyclophanecarboxylic Acids The partial chromatographic separation racemic title compound 1 (ee = 40%) was achieved on triacetylcellulose with ethanol using a recycling technique. Comparison CD spectra (+)22365-1 (+)22365-2 leads absolute configuration (P) for both compounds. This assignment is interest in view earlier configurational assignments [n]paracyclophanecarboxylic acids.