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Separation of organic bases by Craig distribution. III. Distribution behavior of diastereoisomeric N,N'-dibutyl-alpha ,alpha '-diphenylethylenediamines

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


cf. CA 52, 18274h; 60, 4033c. dl-(BuNHCHPh)2.2HCl (I.2HCl) and meso-I.2HCl showed different distribution behavior under certain conditions. Thus, in the system 10:1:9 CHCl3-MeOH-buffer at 22 Deg, the compds. showed the following solubilities [compd., g. salt in 100 ml. aq. phase (pH 1), and g. salt in 100 ml. org. phase given]: meso-I, 9.8, 1.3; dl-I, 9.2, 38.2. While, in the distribution of ...


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