Abstract: The optically active spirans, 1, l '-spirobiindan, 1, l '-spirobiindene, and 1, l '- spirobiindan-3-one, have been prepared from optically active 3-carboxymethyl-3-phenyl-1- indanone, an intermediate possessing centrodissymmetry. Correlation of its configuration with two independent standards of absolute configuration, 2-methyl-2-phenylsuccinic acid and 1-cyclohexyl-1-phenylethanol, allowed unambiguous assignment of absolute ...
