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Supported Nitric Acid on Silica Gel and Polyvinyl Pyrrolidone (PVP) as an Efficient Oxidizing Agent for the Oxidation of Urazoles and Bis-urazoles |
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| Authors: | Arash Ghorbani-Choghamarani Zahra Chenani Shadpour Mallakpour |
| Institution: | 1. Department of Chemistry, Faculty of Science , Ilam University , Ilam, Iran arashghch58@yahoo.com;3. Department of Chemistry, Faculty of Science , Ilam University , Ilam, Iran;4. Organic Polymer Chemistry Research Laboratory, Department of Chemistry , Isfahan University of Technology , Isfahan, Iran |
| Abstract: | A method for the oxidation of a good range of urazoles and bis-urazoles to the corresponding triazolinediones by supported nitric acid on silica gel (SiO2-HNO3) and/or polyvinyl pyrrolidone (PVP-HNO3) is described. Reactions have been carried out heterogeneously at room temperature in dichloromethane with good to excellent yields. |
| Keywords: | Bis-urazoles oxidation polyvinyl pyrrolidone triazolinediones urazoles |