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Herz reaction information


The Herz reaction, named after the chemist Richard Herz, is the chemical conversion of an aniline to the benzodithiazolium salt by its reaction with disulfur dichloride. The salt is called a Herz salt. Hydrolysis of this Herz salt give the corresponding sodium thiolate, which can be further converted to the 2-aminothiophenol.[1]

Herz-reaction
Herz-reaction

The 2-aminothiophenols are suitable for diazotization, giving benzothiadiazoles.[2] Instead the sodium 2-aminothiophenolate can be converted to a 1,3-benzothiazole.

Herz-reaction application
Herz-reaction application
  1. ^ W. K. Warburton (1957). "Arylthiazathiolium Salts And o-Aminoaryl Thiols - The Herz Reaction". Chemical Reviews. 57 (5): 1011–1020. doi:10.1021/cr50017a004.
  2. ^ Kirby, P.; Soloway, S. B.; Davies, J. H.; Webb, Shirley B. (1970). "1,2,3-Benzothiadiazoles. Part I. A simplified synthesis of 1,2,3-benzothiadiazoles". Journal of the Chemical Society C: Organic (16): 2250. doi:10.1039/J39700002250.

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Herz reaction

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