Supported Nitric Acid on Silica Gel and Polyvinyl Pyrrolidone (PVP) as an Efficient Oxidizing Agent for the Oxidation of Urazoles and Bis-urazoles

被引：26
作者：
Ghorbani-Choghamarani, Arash [1 ]
Chenani, Zahra [1 ]
Mallakpour, Shadpour [2 ]
机构：
[1] Ilam Univ, Fac Sci, Dept Chem, Ilam, Iran
[2] Isfahan Univ Technol, Dept Chem, Organ Polymer Chem Res Lab, Esfahan, Iran
来源：
SYNTHETIC COMMUNICATIONS | 2009年 / 39卷 / 23期
关键词：
Bis-urazoles; oxidation; polyvinyl pyrrolidone; triazolinediones; urazoles; SOLVENT-FREE CONDITIONS; IN-SITU GENERATION; CORRESPONDING TRIAZOLINEDIONES; HETEROGENEOUS CONDITIONS; N-PHENYLTRIAZOLINEDIONE; CATALYTIC-OXIDATION; REUSABLE REAGENT; MILD CONDITIONS; SYSTEM; 1,4-DIHYDROPYRIDINES;
D O I：
10.1080/00397910902898619
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
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.
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页码：4264 / 4270
页数：7
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