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Use of caproic and cyclohexanecarboxylic acids for determining benzoic and sorbic acids

Pharmaceutical Chemistry Journal, 2013
The possibility of using caproic and cyclohexanecarboxylic acids for determining sorbic and benzoic acids, respectively, was studied. The presence of double bonds in sorbic and benzoic acids decreased significantly their retention times compared with those of their saturated analogs (caproic and cyclohexanecarboxylic acids) on chromatography columns ...
A. S. Osipov, E. B. Nechaeva
semanticscholar   +3 more sources

Mixed anhydrides of cyclohexanecarboxylic acid with sulphonic acids

J. Chem. Soc., Perkin Trans. 1, 1974
A new high-yield synthesis of mixed anhydrides of cyclohexanecarboxylic acid with sulphonic acids is described. The intramolecular thermal decomposition of these anhydrides when treated with solutions of nitrosylsulphuric acid in sulphuric acid may be assumed to proceed via pentamethyleneketen which has been recently postulated to be an intermediate in
Ezio Tempesti   +4 more
openaire   +2 more sources

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