ISSN:
1434-4475
Keywords:
7,16-Diphenyl-1,4,10,13-tetraxoxa-7,16-diaza-cyclooctadecan
;
Dicyanomethylene-pyrazolinone
;
Chromoionophores by thermolysis or photolysis
;
Complex formation constants
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary An improved synthesis of 7,16-diphenyl-1,4,10,13-tetraoxa-7,16-diaza-cyclooctadecan (5) is presented and the reaction with 4-dicyanomethylene-3-methyl-1-phenyl-2-pyrazolin-5-on to the colorless adduct6 described. By heating or photolysis6 can be converted to the deeply colored polymethine7. Complex formation constants with potassium ion by1H-NMR-measurements have been determined.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00816852
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