Liquid phase bromination of phenols over silicotungstic acid immobilized on nickel oxide nanoparticles
Journal Title: Iranian Chemical Communication - Year 2017, Vol 5, Issue 1
Abstract
Heteropoly acid promoted nanoparticle of nickel oxide samples were prepared by sol-gel method using heteropoly acids. Prepared composite was characterized by XRD, FT-IR and ICP technique. In this work, we have reported bromination of phenol, its derivatives and some aromatic compounds. The liquid phase bromination of phenol was Performed using heteropoly acids immobilized nanoparticle of nickel oxide as catalyst, KBr as brominating agent and hydrogen peroxide as an oxidant in acetonitrile at room temperature. The reaction proceeds through the formation of Br+ (bromonium ion), which attacks the phenol ring forming different brominated products. Prepared catalyst can be used several times without a significant decline in catalytic activity.
Authors and Affiliations
Abbas Mirzaie, Ahmad Afzalinia, Tahereh Musabeygi
Keywords
Related Articles
- EP ID EP259742
- DOI -
- Views 102
- Downloads 0
Catalytic application of an organosuperbase denderon grafted on mesoporous SBA-15 and related palladium complex in the aerobic oxidation of alcohols
An efficient synthetic method for successful synthesis of amine denderon on SBA-15 and related Pd (II) complex has been developed. This modified mesoporous material was characterized by various techniques such as TEM, XR...
Pharmacological properties of some 3-substituted indole derivatives, a concise overview
Indole is a nitrogen-containing heterocycle. It is a very important motif in agriculture and pharmacy. Many compounds containing indole moiety has been isolated form nature. It is also an important part in natural alkalo...
Zinc oxide nano-crystals assisted for carbon dioxide gas sensing; prepared by solvothermal and sonochemical methods
ZnO nanostructures of different methods and sizes were grown in a controlled manner using a simple hydrothermal and sonochemical technique. Controlling the content of concentration and temperature of the reaction mixture...
GC-MS Analysis of phytocomponents and antioxidant, antimicrobial activities of aerial parts of Stachys turcomanica
The aim of this study was to investigate the Stachys turcomanica phytochemical compounds, antimicrobial and antioxidant activity of methanolic extract. The volatile constituents from the aerial parts of Stachys turcomani...
Furocoumarins from Heracleum rawianum in Iran
The species Heracleum rawianum belongs to Apiaceae, is one of the native species in Iran. The leaves and fruits of Heracleum rawianium are used traditionally in Iran as flavouring agent and spice for food. In the present...