MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202617074551 A) filed by Adama Agan Ltd. on June 16, 2026, for Process For Preparation Of Sulfonyl Pyrazolones.
Inventors include Grabarnick, Michael; Wang, Wenjun; Wu, Shaoxiang Number; Zhang, Jinping; Gao, Rui; Liu, Wei; and Li, Mengfei.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: The invention relates to a method for preparing sulfonyl pyrazolone compound of Formula (IV) with substantially less undesired toxic impurity, Formula (IV), wherein these compounds are used as active ingredients in agricultural field, especially as an herbicidal compound. The process for preparation of compound of Formula (IV) comprises reacting the compound of Formula (III), with a catalytic amount of cyanide source and a base followed by mixing with an oxidizing reagent and acidifying the mixture to obtain the compound of Formula (IV).
Disclaimer: Curated by HT Syndication.
