US Patent Issued to Versitech, Laboratory for Synthetic Chemistry and Chemical Biology on April 22 for "Iron catalyzed highly enantioselective cis-dihydroxylation of quinones" (Chinese Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,065, issued on April 22, was assigned to Versitech Ltd. (Hong Kong) and Laboratory for Synthetic Chemistry and Chemical Biology Ltd. (Hong Kong).

"Iron catalyzed highly enantioselective cis-dihydroxylation of quinones" was invented by Chi Ming Che (Hong Kong), Tingting Wang (Hong Kong) and Haixu Wang (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods for asymmetric cis-dihydroxylation ("AD") of quinones to produce cis-diols of quinones with high yield (i.e. a yield less than=30%) and high enantioselectivity (i.e. an enantiometric excess less than=30%) are disclosed. The method uses an iron-based catalyst, such as one or more Fe(II) com...