ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,430, issued on Dec. 23, was assigned to Zhejiang Normal University (Jinhua, China).

"Method for preparing cyano sulfonyl fluoride compounds" was invented by Xingliang Nie (Jinhua, China), Jin Yan (Jinhua, China), Yuzhi Ma (Jinhua, China), Jihong Yu (Jinhua, China) and Likang Yu (Jinhua, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for preparing cyano sulfonyl fluoride compounds is provided. Oxime ether compounds are used as free radical precursors, and under the condition of photocatalyst regulation, and in combination with the strategy of free radical sulfur dioxide insertion, the process involves photocatalytic oxidation, C-C bond...