MUMBAI, India, Aug. 12 -- Intellectual Property India has published a patent application (202617038224 A) filed by Hangzhou Udragon Chemical Co. , Ltd. on March 27, 2026, for Preparation Method For High-Content 2-Trifluoromethyl-4-Heptafluoroisopropyl Aniline.
Inventors include Shen, Xinliang; Yang, Jian; Du, Liangzhong; Cao, Duanxiang; Shen; Huang, Wenchao; Shen, Hao; and Wu, Hualong.
The application for the patent was published on August 07, 2026, under issue no. 32/2026.
Abstract: The present invention provides a preparation method for high-content 2-trifluoromethyl-4-heptafluoroisopropyl aniline. In the presence of dithionous acid, a solvent, and a catalyst, 2-trifluoromethyl aniline and 2-bromoheptafluoropropane undergo a reaction and post-treatment to obtain high-content 2-trifluoromethyl-4- heptafluoroisopropyl aniline, wherein the catalyst is selected from phosphoric acid, pyrophosphoric acid, hypophosphorous acid, metaphosphoric acid, phosphorous acid, pyrophosphorous acid, hydrobromic acid, hydrogen bromide gas, hydrogen chloride gas or sodium bisulfite. The preparation method of the present invention is simple to operate, has mild chemical reaction conditions, achieves a primary reaction conversion content of 96% or above under good reaction conditions, has few post- treatment steps, requires no rectification, achieves a final product content of 98% or above, achieves a total reaction yield of 93% or above, is easy for industrial production, and has good prospects for application.
Disclaimer: Curated by HT Syndication.
