Synthetic studies on 4,5-dihydro-3H-1,2,4-triazole-3,5-diones bearing fluorogenic residues at N-4

OXIDATION OF URAZOLES UNDER MILD AND HETEROGENEOUS CONDITIONS WITH KHSO5 AND NaNO2

“…Mohammad Ali Zolfigol, 1,* Mojtaba Bagherzadeh, 1 Gholamabbas Chehardoli, 1 and Shadpour E. Mallakpour 2 are capable of effecting these oxidations, [18][19][20][21] as far as we know, this transformation is difficult and tricky because these compounds are very sensitive to the oxidizing agents and reaction conditions. However, most of the reported reagents produce by-products that either destroy, or are difficult to remove from, the sensitive triazolinedione.…”

Organic Solid Acid/NaNO2: An Efficient System for the Oxidation of Urazoles and Bis-Urazoles under Mild and Heterogeneous Conditions

“…In addition, most of the reported reagents produce byproducts which either destroy the sensitive triazolinediones, or are difficult to remove from the reaction product. Another major drawback of the older procedures is their use of reagents which are either highly toxic or impose serious disposal problems (or both) [9][10][11][12][13].…”

A Simple and Rapid Spectrophotometric Method for Determination of Ultra Trace Amounts of Thallium(III) with 4‐(4′‐N,N‐Dimethylaminophenyl) Urazole as a New Reagent

“…4 , electrophilic aromatic substitution 5 , dehydrogenating properties 6 and oxidation of alcohols to aldehydes and ketones 7 . All known methods of synthesis of these compounds require oxidation of the corresponding 1,2,4-triazolidine-3,5-diones, more commonly known as urazoles [8][9][10] .…”