Crown ether compounds, process for the preparation of the...

Details Crown ether compounds, process for the preparation of the... Crown ether compounds, process for the preparation of the...

C - Chemistry, Metallurgy

07

D

204/202, 260/280

C07D 323/00 (2006.01) C07D 405/14 (2006.01) C07D 407/14 (2006.01)

Patent

CA 1215062

Abstract NEW CROWN ETHER COMPOUNDS, PROCESS FOR THE PREPARATION OF THE CROWN ETHER COMPLEX FORMING AGENTS AND ION-SELECTIVE MEMBRANE ELECTRODES CONTAINING THE SAME New crown ether derivatives of formula (I) Image /I/ wherein R stands for hydrogen or C1-4 alkyl n stands for 1,2, X stands for oxygen, sulphur or a NH-group Y represents hydrogen or nitro Z represents a chemical bond, -CH2-, -(CH2)2-4-,-CH2OCH2-, -CH2SCH2-, Image or a group of the formula Image (1) Image (2) or Image (3) suitable for forming cation complexes, process for the preparation thereof and alkali or alkali earth metal ion-selective membrane electrodes containing said compounds are described.

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