REDUCTIVE CYCLIZATION OF NONCONJUGATED ACETYLENIC KETONES TO 2- METHYLENECYCLOPENANOLS

Abstract
Electroreduction of series of γ-ethynl ketones in dimethylformamide gave the cyclization products, 2-methylenecyclopentanols, as the sole product in excellent yeilds. furthermore, this electrochemical techniqe was applied to a new synthesis of bicyclic alcohols with an exocyclic double bond adjacent to a bridgehed hydroxy group.