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Enantiomerentrennung, Circulardichroismus, Racemisierung und Röntgenstrukturanalyse des Benzo[2.2]metacyclophans

Wittek, M., Vögtle, F., Stühler, G., Mannschreck, Albrecht, Lang, Barbara Margarete and Irngartinger, H. (1983) Enantiomerentrennung, Circulardichroismus, Racemisierung und Röntgenstrukturanalyse des Benzo[2.2]metacyclophans. Chemische Berichte 116 (1), pp. 207-214.

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Abstract

The title compound 1 was separated into the enantiomers by chromatography on cellulose triacetate: (–)-1 exhibits an enantiomeric purity of 100% with [α]36520 = −3210 ± 135 (acetone). A racemization barrier ΔG≠ = 125 kJ/mol is found by means of a kinetic study. The helicity of the molecule is demonstrated through these results as well as through an X-ray analysis, which is also described.


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Item type:Article
Date:1983
Additional Information (public):späterer Zeitschr.titel: European journal of inorganic chemistry
Institutions:Chemistry and Pharmacy > Institut für Organische Chemie > Alumni or Retired Professors > Prof.Dr. Mannschreck
Identification Number:
ValueType
10.1002/cber.19831160123DOI
Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Item ID:17971
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