Syntheses and UV–visible spectroscopic properties of two new hydrophilic 2, 6??di (carbamoyl)??substituted solvatochromic pyridinium N??phenolate betaine dyes
C Reichardt, A Röchling…
文献索引：Reichardt, Christian; Roechling, Andreas; Schaefer, Gerhard Journal of Physical Organic Chemistry, 2003 , vol. 16, # 10 p. 682 - 690
Abstract Syntheses and negative solvatochromism of t wo 2, 6-di (carbamoyl)-substituted pyridinium N-phenolate betaines dyes, 3 and 4, are described for the purpose of obtaining more hydrophilic zwitterionic dyes which are better soluble in water and other aqueous media (such as binary water–solvent mixtures or aqueous ionophore solutions) than the rather hydrophobic standard betaine dyes 1 and 2, which have been used to establish an ...
