Diethylenetriamine and triethylenetriamine / by Robert George Fargher.

  • Fargher, Robert George.
Date:
1920.]
Catalogue details

Licence: Public Domain Mark

Credit: Diethylenetriamine and triethylenetriamine / by Robert George Fargher. Source: Wellcome Collection.

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    CXLVI.—Diethylenetriamine and Trivthylenctetramine. By Robert George Fargher. The interaction of ethylene dichloride and a large excess of ammonia has been investigated by Kraut (Annalen, 1882, 212, 253), who considered that it led almost entirely to ethylenediamine, although the reaction of the alcohol-soluble portion of the mixed hydrochlorides with potassium bismuth iodide indicated that a small proportion of piperazine was formed. The author had occasion to prepare several kilograms of ethylene¬ diamine, essentially by Kraut’s method, and it was thought to be of interest to investigate in more detail the other products of the reaction. The hydrochlorides obtained by evaporation of the product were converted into the corresponding bases and fraction¬ ally distilled. The portion of higher boiling point consisted mainly of diethylenetriamine, whilst there was also produced, although in much smaller quantity, triethylenetetramine. The intermediate
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