Zeolite H‐Y–Supported Copper(II) Nitrate: A Simple and Effective Solid‐Supported Reagent for Nitration of Phenols and Their Derivatives

Copper Nitrate Mediated Regioselective [2+2+1] Cyclization of Alkynes with Alkenes: A Cascade Approach to Δ2‐Isoxazolines

“…[1] Among those nitration reactions,m ost of them proceed via nitrogen dioxide radicals or via the nucleophilic attack of alkenes or aryl rings at ac ationic intermediate. [2] Although copper nitrate has been disclosed as an effective direct nitration reagent for arenes [3] and ketones, [4] theu se of this simple and inexpensive reagent as an ew and versatile nitrogen and oxygen source to replace the traditionally required agents still remains both challenging and of great value. D 2 -Isoxazoline derivatives represent an important class of five-membered heterocycles [5] and are frequently found in numerous biologically active molecules with antibacterial, [6a] antitubercular, [6b] siderophore, [6c] antidepressant, [6d] and b-galactosidase-inhibiting properties.…”

Nitro Lignin-Derived Nitrogen-Doped Carbon as an Efficient and Sustainable Electrocatalyst for Oxygen Reduction

“…28 We considered the aromatic nitration as the simplest method for the selective covalent introduction of nitrogen-containing functionalities on the lignin carbon backbone. Despite the wide choice of effective nitrating systems in the literature, including AgNO 2 in the presence of Pd(OAc) 2 29 or Cu(NO 3 ) 2 supported on a zeolite catalyst, 30 the simple and cheaper nitration by nitric acid in acetic anhydride in the presence of catalytic amounts of sulfuric acid 31 (Figure 1B) was investigated as a proof of principle. In order to optimize the reaction conditions, we first performed the nitration of 2-methoxy-4-propylphenol, which features phenylpropanoic, methoxy, and phenolic functionalities and is considered a good model for the more complex structure of lignin.…”

A green chemical approach for nitration of aromatic compounds

“…Vione et al [3] used phenol as a model aromatic molecule and TiO 2 as photocatalyst to carry out aromatic photochemical nitration in homogeneous and heterogeneous aqua systems. Photonitration of monuron induced by nitrate and nitrite ions in water has been reported by Nelieu et al [4] while Lalitha and Sivakumar [5] suggested a simple and effective solid-supported reagent for nitration of phenols and their derivatives on zeolite H-Y-supported copper(II)nitrate.…”