Synthesis of 5-Substituted 4,4-Disubstituted 2-Cyclohexen-1-ones by Electro-Generated Base Promoted Michael Addition of 4,4-Disubstituted 2,5-Cyclohexadien-1-ones - Torii, Sigeru; Hayashi, Naoya; Kuroboshi, Manabu (Synlett, 1998)