A Convenient Synthesis of Some New 5-Substituted-4-Thioxo-Thiazolidinones and Fused Thiopyrano[2,3-<i>d</i>]thiazole Derivatives
作者:Nadia Hanafy Metwally
DOI:10.1080/10426500701849105
日期:2008.8.4
Z-5-arylmethylene-4-thioxo-thiazolidine derivatives have been synthesized by condensation of ω -(4-formylphenoxy)acetophenone derivatives with 4-thioxo-thiazolidine derivatives, in good yields. The cycloaddition of the newly synthesized compounds to N-arylmaleimides, N-phenyl-1,2,4-triazole-3,5-dione, ethyl acrylate and ω -nitrostyrene has been studied. Under thermal reaction conditions [4 + 2] cycloaddition proceeds
新的 Z-5-arylmethylene-4-thioxo-thiazolidine 衍生物是通过 ω -(4-formylphenoxy) acetophenone 衍生物与 4-thioxo-thiazolidine 衍生物缩合合成的,收率良好。研究了新合成的化合物与 N-芳基马来酰亚胺、N-苯基-1,2,4-三唑-3,5-二酮、丙烯酸乙酯和 ω-硝基苯乙烯的环加成反应。在热反应条件下,[4 + 2] 环加成以完全的位点和区域选择性进行,以产生新的稠合噻喃并 [2,3-d] 噻唑衍生物。