MUMBAI, India, July 7 -- Intellectual Property India has published a patent application (202511091352 A) filed by Indian Institute Of Technology Banaras on September 24, 2025, for A Method Of Metal-Free Sulfonation Of An Imidazopyridine.

Inventors include Deepak Kumar; Pallavi Saha; and Mohit Kumar.

The application for the patent was published on July 03, 2026, under issue no. 27/2026.

Abstract: The present invention provides an economical and environment-friendly method of metal-free sulfonation of an imidazopyridine. The method involves reacting an imidazopyridine with potassium persulfate in a reaction solvent to yield a plurality of imidazo[1,2- a]pyridine-3-sulfonic acid derivatives. Moreover, the present invention provides a method...