Synthesis and theoretical investigation of some new 4-substituted flavylium salts

- A short library of novel 4-substituted flavylium salts has been synthesized.
- Compounds were characterized by spectroscopic means and crystallographic analysis.
- A computational DFT-M06-2X structural analysis has been performed.

Flavylium salts substituted at 4-position with hydroxyphenyl substituents were synthesized by acidic condensation according to a slightly modified procedure described by Robinson and Walker. Their thermodynamic properties and conformational analysis have been studied at DFT level.