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Sur le dianilino-1, 2-diphényl-1, 2-éthane. Séparation de diastéréoisomères sous forme de complexes avec la diméthylformamide

✍ Scribed by Roland Jaunin

Publisher
John Wiley and Sons
Year
1956
Tongue
German
Weight
423 KB
Volume
39
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Dimethylformamide has been found to give solid complexes with both d,l and meso 1,2‐dianilino‐1, 2‐diphenylethanes (I), but only with the meso forms of 1,2‐di‐o‐ and 1,2‐di‐p‐toluidino‐1,2‐diphenylethanes (resp. II and III). These complexes are particularly suitable for the separation of diastereomeric mixtures of I and of II, respectively.
IR. spectra of the dimethylformamide complexes of I show evidence for hydrogen bonding in the solid state, but not in CCl~4~, solution.

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