Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. category: benzofuran. Introducing a new discovery about 125-20-2, Name is Thymolphthalein
Organic dyes derived from phthaleins have a large number of industrial applications and can be synthesized using a Lewis acid by Friedel?Crafts acylation, followed by an addition reaction to the carbonyl compound. This work aims to investigate the use of NbCl5 as a catalyst for the acylation reaction. The behavior of the phthalein derivatives in several solvents and when subjected to different pH conditions was studied. These compounds showed a color-changing effect depending on the pH and solvent, making them useful for applications as indicators. The phthaleins change their conformations depending on the condition of the medium. Photophysical studies of these compounds were carried out through their UV?Vis absorption spectra. Here, we show the umbrella-like conformation change of phthalein derivatives that depend on the solvent and the pH of the medium.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.category: benzofuran, you can also check out more blogs about125-20-2
Reference：
Benzofuran – Wikipedia,
Benzofuran | C8H4358O – PubChem