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Flüssigkeits-Chromatographie an Triacetylcellulose 6. Helicale Phenanthrene: 1. Synthesis, Chromatographic Enrichment of Enantiomers, and Barriers to Enantiomerization of Helical Phenanthrenes

Scherübl, Herbert, Fritzsche, Ursula and Mannschreck, Albrecht (1984) Flüssigkeits-Chromatographie an Triacetylcellulose 6. Helicale Phenanthrene: 1. Synthesis, Chromatographic Enrichment of Enantiomers, and Barriers to Enantiomerization of Helical Phenanthrenes. Chemische Berichte 117 (1), pp. 336-343.

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Abstract

Enantiomerization barriers (Table 1) for novel 4,5-disubstituted phenanthrenes of types A and B have been determined by coalescence of 1H NMR signals or by thermal racemization of chromatographically enriched enantiomers. The barriers depend upon the size of the groups R = CMe3, Br, Me, Cl, OBz in A and B, the behaviour of annelated benzo rings instead of R being particularly considered.


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Item type:Article
Date:1984
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.19841170124DOI
Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Item ID:17988
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