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Updated: Aug 28, 2025

Metal-free Synthesis of Ynones from Acyl Chlorides and Potassium Alkynyltrifluoroborate Salts
Published on: February 24, 2015
Electrogenerated base-promoted cyclopropanation using alkyl 2-chloroacetates
Kouichi Matsumoto1, Yuta Hayashi1, Kengo Hamasaki1
1Department of Chemistry, School of Science and Engineering, Kindai University 3-4-1 Kowakae, Higashi-osaka, Osaka 577-8502, Japan.
Abstract:
The electrochemical reduction conditions of the reaction of alkyl 2-chloroacetates in Bu4NBr/DMF using a divided cell equipped with Pt electrodes to produce the corresponding cyclopropane derivatives in moderate yields were discovered. The reaction conditions were optimized, the scope and limitations, as well as scale-up reactions were investigated. The presented method for the electrochemical production of cyclopropane derivatives is an environmentally friendly and easy to perform synthetic procedure.
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