Synthesis of 1,3,4-Thiadiazoles and 1,4,2-Oxathiazoles from α-Enolic Dithioesters and Active 1,3-Dipoles
作者:Bin Cheng、Hui Li、Jianguo Sun、Xinping Zhang、Yixuan He、Haiyan Sun、Wei Xu、Taimin Wang、Hongbin Zhai
DOI:10.1021/acs.joc.1c00156
日期:2021.4.2
synthesis of two kinds of five-membered organosulfur heterocycles (i.e., 1,4,2-oxathiazoles and 1,3,4-thiadiazoles) from α-enolic dithioesters with active 1,3-dipoles (nitrile oxides and nitrilimines) generated in situ was achieved under mild reaction conditions. This transformation further expands the synthetic application of α-enolic dithioesters as the sulfur-containing building blocks.
由具有活性的1,3-偶极(腈氧化物和腈)的α-烯醇二硫代酯合成两种五元有机硫杂环(即1,4,2-氧杂噻唑和1,3,4-噻二唑)。原位反应是在温和的反应条件下完成的。这种转变进一步扩大了α-烯醇二硫酯作为含硫结构单元的合成应用。