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Stereochemie von Metallocenen, 40. Mitt. |
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| Authors: | Vladimir Rapić Prof. Dr. Karl Schlögl Brigitte Steinitz |
| Affiliation: | (1) Organisch-Chemisches Institut, Universität Wien, Österreich;(2) Present address: Laboratorium für Organische Chemie und Technologie, Technologische Fakultät der Universität Zagreb, Währinger Straße 38, A-1090 Wien, (Jugoslawien) |
| Abstract: | Starting from optically active methylferrocene- - and- -carboxylic acids (1 a and1 b) of known absolute configuration and enantiomeric purity about 15 chiral ferrocenes (of each isomeric series— and ) were obtained by suitable ligand transformations. Thereby (almost) all possible chiral combinations of the ligands CH3, COOH (COO–), COOCH3, C N and NH2 (NH3+) were accessible which are necessary for a potential test of approximations of chirality functions for compounds with basic symmetry C5v. The chiroptical properties of these disubstituted ferrocenes are recorded.Preliminary tests using a shortened Ansatz revealed large discrepancies between calculated ( ) and found [M]D-values. Possible reasons for this failure are discussed.61. Mitt. über Ferrocenderivate 39. Mitt.:A. Meyer, H. Neudeck undK. Schlögl, Chem. Ber.110, 1403 (1977). 60. Mitt.:V. Rapi  , K. Schlögl undB. Steinitz, J. Organometal. Chem.94, 87 (1975). |
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