Abstract Starting from (+)(2R) methyl 5′-ethyl-2, 2′-spirobiindane-5-carboxylate of known enantiomeric purity 79 optically active, configurationally correlated 5, 5′, 6′-trisubstituted 2, 2′-spirobiindanes (2–7) were prepared for the purpose of testing a “shortened polynomal Ansatz” for chirality functions. Their optical rotations and 1 H-nmr spectra are reported. In this context several 6-substituted 5-ethylindanes (1) were prepared as model ...
