US Patent Issued to Apeiron Synthesis on March 18 for "Use of N-chelating ruthenium complexes in the metathesis reaction" (Polish Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,688, issued on March 18, was assigned to Apeiron Synthesis S.A. (Wroclaw, Poland).

"Use of N-chelating ruthenium complexes in the metathesis reaction" was invented by Rafal Gawin (Warsaw, Poland), Patryk Krajczy (Glogowek, Poland), Anna Gawin (Warsaw, Poland) and Krzysztof Skowerski (Jablonowo Pomorskie, Poland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The subject matter of the invention is the use of a ruthenium complex of the formula 1, wherein the individual substituents have meanings as indicated in the olefin metathesis reactions description, including a reaction selected from such as ring-closing metathesis (RCM), homometathesis (self-CM...