Process for the preparation of pyrylium salts

The present invention relates to the process for the preparation of Pyrylium salts having the formula represented below. Present  invention provide a simplified method of producing symmetrical and unsymmetrical pyrylium salts. The invention explores readily  available starting materials with reaction conditions which are suitable for industrial scale applications. All the synthesized  compounds were confirmed by various spectroscopic techniques such as Fourier transform infrared spectroscopy, 1H NMR, 13C  NMR, 19F NMR spectroscopy, and singlecrystal X-ray analysis. Mass of the compounds confirmed by HRMS analysis.

  • Year : 2023
  • Granted Country : USA
  • Filing Date :
  • Issue Date :
  • Application Number : 16/967613
  • Patent Number :
    • 11661407
  • Inventors :Sasidhar Balappa Somappa, Chettiyal thodi fathimath salfeena, Ayyappanpillai Ajayaghosh