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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 33, 2003 - Issue 5
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Original Articles

Silica Sulfuric Acid/NaNO2 as a Novel Heterogeneous System for the Oxidation of Urazoles Under Mild Conditions

Mohammad Ali Zolfigol Chemistry Department, College of Science, Bu-Ali Sina University, Hamadan, IranCorrespondence[email protected]
,
Gholamabbas Chehardoli Chemistry Department, College of Science, Bu-Ali Sina University, Hamadan, Iran
&
Shadpour E. Mallakpour Organic Polymer Chemistry Research Laboratory, College of Chemistry, Isfahan University of Technology, Isfahan, IR, Iran
Pages 833-841 | Received 03 Dec 2001, Published online: 17 Aug 2006

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Shadpour Mallakpour & Zahra Rafiee. (2007) Novel and Efficient Synthesis of 4‐Substituted‐1,2,4‐triazolidine‐3,5‐diones from Anilines. Synthetic Communications 37:11, pages 1927-1934.
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Tong‐Shou Jin, Ruo‐Fei Tian, Li‐Bin Liu, Ying Zhao & Tong‐Shuang Li. (2006) Silica Sulfate, an Efficient Catalyst for the Trimethylsilylation of Alcohols. Synthetic Communications 36:13, pages 1823-1828.
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Ying Zhao, Li‐Bin Liu, Zhuo Chen, Tong‐Shuang Li & Tong‐Shou Jin. (2006) Rapid and Efficient Method for Acetylation of Alcohols and Phenols with Acetic Anhydride Catalyzed by Silica Sulfate. Synthetic Communications 36:9, pages 1221-1227.
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Mohammad Ali Zolfigol, Peyman Salehi & Morteza Shiri. (2004) AN EFFICIENT PRO CEDURE FOR THE PREPARATION OF MONO, AND DI-BIS-INDOLYL METHANES CATALYZED BY MOLIBDATOPHOSPHORIC ACID. Phosphorus, Sulfur, and Silicon and the Related Elements 179:11, pages 2273-2277.
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Articles from other publishers (19)

Lacksany Phongphane & Mohamad Nurul Azmi. (2023) Green is the New Black: Emerging Environmentally Friendly Prospects in the Synthesis of Quinoxaline Derivatives. Mini-Reviews in Organic Chemistry 20:4, pages 415-435.
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Donya Khaledian, Amin Rostami & Seyed Amir Zarei. (2018) Laccase-catalyzed in situ generation and regeneration of N-phenyltriazolinedione for the aerobic oxidative homo-coupling of thiols to disulfides. Catalysis Communications 114, pages 75-78.
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Abdollah Rahimi, Davood Habibi, Amin Rostami, Mohammad Ali Zolfigol & Shadpour Mallakpour. (2018) Laccase-catalyzed, aerobic oxidative coupling of 4-substituted urazoles with sodium arylsulfinates: Green and mild procedure for the synthesis of arylsulfonyl triazolidinediones. Tetrahedron Letters 59:4, pages 383-387.
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Kevin De Bruycker, Stijn Billiet, Hannes A. Houck, Subrata Chattopadhyay, Johan M. Winne & Filip E. Du Prez. (2016) Triazolinediones as Highly Enabling Synthetic Tools. Chemical Reviews 116:6, pages 3919-3974.
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Mahya Kiafar, Mohammad Ali Zolfigol, Meysam Yarie & Avat(Arman) Taherpour. (2016) The first computational study for the oxidative aromatization of pyrazolines and 1,4-dihydropyridines using 1,2,4-triazolinediones: an anomeric-based oxidation. RSC Advances 6:104, pages 102280-102291.
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Gholamabbas Chehardoli, Mohammad Ali Zolfigol, Ezat Ghaemi, Elaheh Madrakian, Khodabakhsh Niknam & Shadpour Mallakpour. (2012) N 2 O 4 Chemisorbed onto n ‐Propylsilica Kryptofix 21 and Kriptofix 22 as Two New Functional Polymers for the Fast Oxidation of Urazoles and 1,4‐Dihydropyridines . Journal of Heterocyclic Chemistry 49:3, pages 596-599.
Crossref
Fariba Jafari & Saeed Khodabakhshi. (2012) Mg(HSO4)2/SiO2 as a Highly Efficient Catalyst for the Green Preparation of 2-Aryl-1,3-Dioxalanes/Dioxanes and Linear Acetals. Organic Chemistry International 2012, pages 1-5.
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Gholamabbas Chehardoli, Mohammad Ali Zolfigol, Seyedeh Bahareh Azimi & Ebadollah Alizadeh. (2011) Melamine-(H2SO4)3 and PVP-(H2SO4)n as solid acids: Synthesis and application in the first mono- and di-nitration of bisphenol A and other phenols. Chinese Chemical Letters 22:7, pages 827-830.
Crossref
Larry Yet. 2011. Modern Heterocyclic Chemistry. Modern Heterocyclic Chemistry 989 1045 .
Heshmat Allah Samimi & Kaveh Parvanak. (2011) Oxidation of Urazoles to their Corresponding Triazolinediones using Benzyltriphenylphosphonium Nitrate. Journal of Chemical Research 35:5, pages 272-274.
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Davood Azarifar, Behrooz Maleki & Mahta Sahraei. (2009) Microwave‐promoted oxidation of 1,3,5‐trisubstituted 4,5‐dihydro‐1 H ‐pyrazoles by in‐situ generation of NO + and NO respectively from sodium nitrite and sodium nitrate in acetic acid . Journal of Heterocyclic Chemistry 45:2, pages 563-565.
Crossref
Ardeshir Khazaei, Mohammad Ali Zolfigol, Amin Rostami & Arash Ghorbani Choghamarani. (2007) Trichloroisocyanuric acid (TCCA) as a mild and efficient catalyst for the trimethylsilylation of alcohols and phenols with hexamethyldisilazane (HMDS) under heterogonous conditions. Catalysis Communications 8:3, pages 543-547.
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Mohammad Ali Zolfigol, Mojtaba Bagherzadeh, Shadpour Mallakpour, Gholamabbas Chehardoli, Eskandar Kolvari, Arash Ghorbani Choghamarani & Nadia Koukabi. (2007) Mild and heterogeneous oxidation of urazoles to their corresponding triazolinediones via in situ generation Cl+ using silica sulfuric acid/KClO3 or silica chloride/oxone system. Catalysis Communications 8:3, pages 256-260.
Crossref
Mohammad Ali Zolfigol, Davood Azarifar, Shadpour Mallakpour, Iraj Mohammadpoor-Baltork, Ali Forghaniha, Behrooz Maleki & Mohammad Abdollahi-Alibeik. (2006) 4-(p-Chloro)phenyl-1,2,4-triazole-3,5-dione as a novel and reusable reagent for the oxidation of 1,3,5-trisubstituted pyrazolines under mild conditions. Tetrahedron Letters 47:5, pages 833-836.
Crossref
Mohammad Ali Zolfigol, Arash Ghorbani Choghamarani, Mozhgan Shahamirian, Maliheh Safaiee, Iraj Mohammadpoor-Baltork, Shadpour Mallakpour & Mohammad Abdollahi-Alibeik. (2005) 4-Phenyl-1,2,4-triazole-3,5-dione as a novel and reusable reagent for the aromatization of 1,4-dihydropyridines under mild conditions. Tetrahedron Letters 46:33, pages 5581-5584.
Crossref
. (2004) Nitration of Aromatic Compounds on Silica Sulfuric Acid. Bulletin of the Korean Chemical Society 25:9, pages 1414-1416.
Crossref
. (2004) Acetalization of Carbonyl Compounds by Using Silica-bound Sulfuric Acid under Green Condition. Bulletin of the Korean Chemical Society 25:6, pages 865-868.
Crossref
Mohammad Ali Zolfigol, Gholamabbas Chehardoli & Shadpour E. Mallakpour. (2003) Silica Sulfuric Acid/NaNO 2 as a Novel Heterogeneous System for the Oxidation of Urazoles under Mild Conditions. . ChemInform 34:29.
Crossref
. (2003) Silica Sulfuric Acid/Potassium Permanganate/Wet SiO₂as an Efficient Heterogeneous Method for the Oxidation of Alcohols under Mild Conditions. Bulletin of the Korean Chemical Society 24:3, pages 400-402.
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