During a study of some relationships of the germicidal activity of certain phenols2 it became necessary to prepare a number of derivatives of secondary butylbenzene. It has seemed desirable to report this work separately.
ExperimentalNormal butyl alcohol was dehydrated by heated aluminum oxide in the furnace described previously3 and the butylene condensed and dissolved in kerosene. This was extracted twice in the cold with 50% sulfuric acid to remove the isobutylene that might have been formed. No attempt was made to prove the presence of this isomer.The butylene was distilled out of the kerosene through a cooled refluxing column, dried by passing through a calcium chloride column, and converted into secondary butylbenzene by the usual procedure; 1818 g. of butylene yielded 2150 g. of jee.-butylbenzene, b. p. 172-175°.
Im Hinblick auf diese Ergebnisse kann der Magnesiumnachweis mit p‐Nitrobenzol‐azo‐Resorcin nicht als spezifisch betrachtet werden. Wegen der Unzulänglichkeit der gewohnlichen Nachweisreaktionen für Magnesium wird sich trotzdem diese Reaktion als wertvoll erweisen, da sie beachtliche Empfindlichkeit besitzt, und auch als spezifisch betrachtet werden kann, wenn die Ionen der Gruppen I, II und III sowie Ammoniumsalze entfernt worden sind.
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