Reductive Alkylation of γ-Cyano-α,β-unsaturated Ketones. A Modified Robinson Annulation Process to α,α-Disubstituted β,γ-unsaturated Cyclohexanone System - Tai, Chia-Liang; Ly, Tai Wei; Wu, Jen-Dar; Shia, Kak-Shan; Liu, Hsiang-Jang (Synlett, 2001)