Electrocatalytic reactions:anion radical cyclobutanation reactions and electrogenerated base reactions

摘要

Intermolecular anion radical[2+2]cyclobutanation reactions have been observed between vinyl sulfones and vinyl/propenyl ketones.The products are novel and formed electrocatalytically,although yields are at best modest(11-45%).Competing mechanisms are discussed.Additionally,the electrochemical reduction of vinyl alkyl sulfones in acetonitrile leads to near quantitative formation of cyanomethylation product cyano-sulfones.The single step approach has electrocatalytic factors in excess of thirty.