Synthesis of Racemic and Enantiomerically Pure Acetylenic ω-Keto Esters Derived from 2-Methyl-1,3-cycloalkanediones and 2-Methylcycloalkanones Respectively - Geoffroy, Philippe; Ballet, Marie-Paule; Finck, Sidonie; Marchioni, Eric; Marcic, Christophe; Miesch, Michel (Synthesis, 2010)