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New method for the spectrophotometric determination and characterization ofN,N-dialkylanilines, diphenylamines and carbazoles using 5-nitroisatin

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Summary

N,N-Dialkylanilines react with 5-nitroisatin chloride to give a bluegreen chromogen with a characteristic absorption spectrum. Aniline andN-alkylanilines give an essentially negative test. Determination ofN,N-dialkylanilines and diphenylamine and carbazole derivatives is possible.

Zusammenfassung

N,N-Dialkylaniline geben mit 5-Nitroisatinchlorid eine blaugrüne Färbung mit einem charakteristischen Absorptionsspektrum. Anilin undN-Alkylaniline geben Absorptionsspektren, die nicht zu Verwechslungen führen können. Die spektrophotometrische Bestimmung vonN,N-Dialkylanilinen, Diphenylamin und Carbazolderivaten ist möglich.

Résumé

LesN,N-dialcoylanilines réagissent avec le chlorhydrate de nitro-5 isatine pour donner un chromogène vert-bleu dont le spectre d'absorption est caractéristique. L'aniline et lesN-alcoylanilines donnent un test essentiellement négatif. Le dosage desN,N-dialcoylanilines, de la diphénylamine et des dérivés du carbazole est possible.

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Literature

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Sawicki, E., Stanley, T.W. & Elbert, W. New method for the spectrophotometric determination and characterization ofN,N-dialkylanilines, diphenylamines and carbazoles using 5-nitroisatin. Mikrochim Acta 49, 505–511 (1961). https://doi.org/10.1007/BF01217484

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  • DOI: https://doi.org/10.1007/BF01217484

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