ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,548, issued on July 8, was assigned to SOOCHOW UNIVERSITY (Suzhou, China).
"Method for preparing carbonyl sulfone" was invented by Xiaobing Wan (Suzhou, China), Hanghang Wang (Suzhou, China), Yonggao Zheng (Suzhou, China), Pengcheng Lian (Suzhou, China) and Jingjing Li (Suzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a method for preparing Beta-carbonyl sulfones. The method comprises: by taking an Alpha-carbonyl diazo compound and sodium arylsulfinate as reaction substrates, cheap silver nitrate as an optimal catalyst, 1,10-phenanthroline as a ligand, and potassium persulfate as an oxidant, carrying out coupling reaction in ...