Fe(III)-Catalyzed Intermolecular C(sp²)-C(sp³) Dehydration Coupling Reaction of Ketene Dithioacetals and Propargyl Alcohols: Synthesis of Novel gem-Dialkylthiopenten-4-ynes and Further Conversion into Methyl Pent-4-ynoates - Song, Jin-Na; Fang, Zhongxue; Liu, Ying; Li, Ran; Xu, Lixin; Barry, Badru-Deen; Liu, Qun; Bi, Xihe; Liao, Peiqiu (Synlett, 2011)