Paper Information

Journal:   JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)   DECEMBER 2010 , Volume 7 , Number 4; Page(s) 834 To 839.
 
Paper: 

METAL-FREE CATALYTIC OXIDATION OF URAZOLES UNDER MILD AND HETEROGENEOUS CONDITIONS VIA COMBINATION OF AMMONIUM NITRATE AND CATALYTIC AMOUNTS OF SILICA SULFURIC ACID

 
 
Author(s):  GHORBANI CHOGHAMARANI A.*, ZOLFIGOL M.A.*, HAJAMI M., MALAKPOUR S.
 
* FACULTY OF CHEMISTRY, BU-ALI SINA UNIVERSITY, HAMADAN, IRAN
 
Abstract: 

Highly efficient production of 4-substituted-1, 2, 4-triazole-3, 5-diones from urazole derivatives using ammonium nitrate and silica sulfuric acid (SiO2-OSO3H), as a cheap and nontoxic catalyst, in the presence of wet SiO2 (50% w/w) under mild and heterogeneous conditions is reported. The process presented here is operationally simple, environmentally benign and produces high yield.

 
Keyword(s): URAZOLE, BIS-URAZOLE, TRIAZOLINEDIONE, AMMONIUM NITRATE, SILICA SULFURIC ACID
 
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