摘要
This procedure works efficiently for high selective mono nitration of phenol and substituted phenol to corresponding nitro compounds in moderate to high yield using poly（4-vinylpyridinium nitrate） and silica sulfuric acid in dichloromethane at room temperature.
This procedure works efficiently for high selective mono nitration of phenol and substituted phenol to corresponding nitro compounds in moderate to high yield using poly（4-vinylpyridinium nitrate） and silica sulfuric acid in dichloromethane at room temperature.
基金
supported by the research affairs of Ilam University,Ilam,Iran
