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Synthesis 1994; 1994(12): 1409-1410
DOI: 10.1055/s-1994-25702
short paper
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Synthesis of Sulfonylmethylated and Cyanomethylated Nitrobenzocrown Ethers. Potential Reagents for Colourimetric Analysis of Alkali Cations

M. Makosza* , I. Kryłowa
  • *Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, P-Warsaw 01-224, Poland
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Publication Date:
25 April 2002 (online)

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Sulfonylmethyl and cyanomethyl derivatives of nitrobenzocrown ethers were prepared via vicarious nucleophilic substitution of hydrogen. These compounds form highly coloured internal potassium salts soluble in nonpolar solvents.