Ionic Complex of N2O4with 18-Crown-6: A Highly Efficient and Selective Reagent for Nitration of Phenols
- 1 October 1999
- journal article
- research article
- Published by Taylor & Francis in Synthetic Communications
- Vol. 29 (19) , 3295-3302
- https://doi.org/10.1080/00397919908085957
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.Keywords
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