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
作者:Jin-Na Song、Peiqiu Liao、Zhongxue Fang、Ying Liu、Ran Li、Lixin Xu、Badru-Deen Barry、Qun Liu、Xihe Bi
DOI:10.1055/s-0030-1260333
日期:2011.10
We report an iron(III)-catalyzed intermolecular C(sp²)-C(sp³) dehydration coupling reaction between ketene dithioacetals and propargyl alcohols, leading to the synthesis of gem-dialkylthiopenten-4-ynes in high efficiency. The products could be transformed into methyl pent-4-ynoates in high yields.
我们报道了铁(III)催化的乙烯酮二硫缩醛和炔丙醇之间的分子间C(sp2)-C(sp3)脱水偶联反应,从而高效合成偕二烷基硫代戊烯-4-炔。产物可以高产率转化为戊-4-炔酸甲酯。