Ionic Complex of N₂ O₄ with 18-Crown-6: A Highly Efficient and Selective Reagent for Nitration of Phenols

N. Iranpoor Department of Chemistry, College of Sciences, Chemistry Department, Shiraz, 71454, Iran

H. Firouzabadi Department of Chemistry, College of Sciences, Chemistry Department, Shiraz, 71454, Iran

R. Heydari Department of Chemistry, College of Sciences, Chemistry Department, Shiraz, 71454, Iran

Abstract

Interaction of gaseous N₂O₄ with 18-crown-6 affords the stable crystalline complex of NO⁺·18-crown-6·H(NO₃)₂. This ionic complex is an efficient nitrating agent for the selective mono-, di-, and trinitration of phenol and also for the selective mono-, and dinitration of substituted phenols.

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Ionic Complex of N₂ O₄ with 18-Crown-6: A Highly Efficient and Selective Reagent for Nitration of Phenols

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Ionic Complex of N₂ O₄ with 18-Crown-6: A Highly Efficient and Selective Reagent for Nitration of Phenols