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Un nouveau réactif pour la caractérisation des aldéhydes: le d , l ‐dianilino‐1,2‐diphényl‐1,2‐éthane
Author(s) -
Jaunin R.,
Godat J.P.
Publication year - 1961
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19610440113
Subject(s) - chemistry , acetic anhydride , perchloric acid , acetic acid , benzaldehyde , titration , medicinal chemistry , organic chemistry , nuclear chemistry , catalysis
d , l ‐1, 2‐Dianilino‐1,2‐diphenyl‐ethane reacts readily and specifically with aldehydes to form substituted d , l ‐1,3,4,5‐tetraphenylimidazolidines, which are highly crystalline compounds with sharp melting points distributed over a wide range of temperature. The reaction has been used for the characterization of the commoner aliphatic aldehydes and several derivatives of benzaldehyde. The neutralisation equivalents of these imidazolidines can be determined bv titration in acetic anhydride with 0,1 N perchloric acid in acetic acid.