188691-24-9Relevant academic research and scientific papers
Synthesis of pyridinium - Indan-1,3-dion-2-ide betaine dyes and use as indicators of carboxylic acids' polarity
Milart, Piotr
experimental part, p. 340 - 343 (2009/06/18)
2-[4-(2,4,6-Triarylpyridinium-1-yl)phenyl]indan-1,3-dion-2-ides 5a-d, (N+C-) betaine dyes, were synthesised by reaction of 2,4,6-triarylpyrylium perchlorates 6a-d with 2-(4-aminophenyl)indan-1,3-dione 7. The solvatochromic effect of
