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Separation of organic bases by Craig distribution. II. Constellation of diastereomeric N,N'-dibutyl-alpha ,alpha '-diphenylethylenediamines

Schönenberger, Helmut ; Brinkmann, R. ; Baman, E.



Abstract

cf. CA 54, 21642d. Dimerizing redn. of N-benzylidenebutylamine with Al amalgam gave a mixt. of meso-(I)and dl-N,N'-dibutyl-alpha ,alpha '-diphen- ylethylenediamine (II) which were isolated by Craig distribution (Schoenenberger, CA 52, 18274h). The constellations of I and II were detd. by reaction with CH2O to form imidazolines and measurement of the rate of hydrolysis, by reaction with CS2 at ...

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