Synthesis and structure of substituted 5-phenoxy-1,2,4-dithiazole-3-ones
摘要:
AbstractSeven new substituted 5‐phenoxy‐1,2,4‐dithiazole‐3‐ones were prepared in modest yield (53–76%) from corresponding O‐phenyl thiocarbamates and chlorocarbonylsulfenyl chloride in dry ether at −10 °C. All of the compounds were characterized by NMR and elemental analysis and some of them by X‐ray diffraction. Preliminary kinetic measurements showed that the parent 5‐phenoxy‐1,2,4‐dithiazole‐3‐one is a very efficient sulfurizing agent toward triphenyl phosphite. J. Heterocyclic Chem., (2011)
Under neat conditions, an efficient method for synthesis of imidoesters has been developed using cyanatobenzenes and dicarbonyl compounds. Nucleophilic addition spontaneously occurred between the two kinds of materials at room temperature with yields of up to 90%. A mechanism directed towards to the imidoester formation has been proposed. (C) 2014 Yan Xiong. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.