Solvent Extraction of Divalent Metal Ions with Azacrown Ether Substituted Acylpyrazolones

DOI PDF Web Site Web Site Web Site 3 Citations 33 References

Search this article

Abstract

Novel 4-acyl-5-pyrazolones having aza-15-crown-5 (HPMP-A15C5) and aza-18-crown-6 (HPMP-A18C6) moieties as an intramolecular synergist have been synthesized by simple coupling reactions between 1-phenyl-3-methyl-4-chloroacetyl-5-pyrazolone and the corresponding azacrown ethers. The solvent extraction of the divalent metal ions (Mn2+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+ and Pb2+) were examined. Synergistic extractions with 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (HPMBP) and benzocrown ethers were also examined for a comparison. Extractions with the novel acylpyrazolones were unique and quite different from those with HPMBP and benzocrown ethers. The synergistic effect with benzocrown ethers was low, and an obvious difference brought by the ring size was not observed. The extractions of the divalent metal ions with HPMP-A18C6 were generally enhanced, as compared to those alone with HPMBP; on the contrary, the extractions with HPMP-A15C5 were relatively poor.

Journal

  • Analytical Sciences

    Analytical Sciences 24 (2), 225-229, 2008

    The Japan Society for Analytical Chemistry

Citations (3)*help

See more

References(33)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top