ChemInform Abstract: Syntheses with Nitriles. Part 98. Synthesis and Characterization of ( Aminocyanomethylene)indandione (cf. (I)) and -pyrazolone (cf. (II)) Chromoionophores as Extractants for Alkali Metal Ions.

Syntheses with Nitriles, XCVIII Synthesi

Syntheses with Nitriles, XCVIII Synthesis and Characterization of (Aminocyanomethylene)indandione and -pyrazolone Chromoionophores as Extractants for Alkali Metal Ions

✍ Boila-Göckel, Andrei ;Fabian, Walter M. F. ;Junek, Hans 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 568 KB

## Abstract A new approach to dissociable chromoionophores 5, 6a–e, 7 and 8 by reaction of (dicyanomethylene)indandione 1 and (dicyanomethylene)pyrazolones 2a–e, respectively, with aminophenyl crowns 3 and 4 is described. The complexation constants were determined by ^1^H‐NMR spectroscopy. For the