Letter | Published:

Karrer's Theory of Coupling

Nature volume 141, page 1056 (11 June 1938) | Download Citation

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Abstract

IN 1915, Karrer1 put forward the view that the coupling of aromatic tertiary amines with diazo-compounds to form alkylamino azo-compounds takes place through the preliminary combination of the diazo-compound with the nitrogen of the amino group. The experimental basis for this theory was the reported observation that when either di-butylaniline or di-isoamylaniline reacts with diazo-sulphanilic acid, an alkyl group is eliminated with the formation of the corresponding monoalkylamino azobenzene sulphonic acid.

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References

  1. 1.

    , Ber., 48, 1398 (1915).

  2. 2.

    and , J. Chem. Soc., 113, 99 (1918).

  3. 3.

    , NATURE, 131, 762 (1933).

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Affiliations

  1. Department of Chemistry, University, Birmingham.

    • W. J. HICKINBOTTOM
    •  & E. W. LAMBERT

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DOI

https://doi.org/10.1038/1411056a0

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