ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,561, issued on June 30, was assigned to Shin-Etsu Chemical Co. Ltd. (Tokyo).

"Process for preparing (Z)-7-tetradecen-2-one" was invented by Yuki Miyake (Joetsu, Japan), Takeru Watanabe (Joetsu, Japan) and Ryo Komatsu (Joetsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for preparing (Z)-7-tetradecen-2-one of the following formula (5), the process comprising the steps of converting a (Z)-1-halo-4-undecene compound (1) of the following general formula (1), wherein X1 represents a halogen atom, into a nucleophilic reagent, (Z)-4-undecenyl compound, of the following general formula (2), wherein M1 repr...