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Regio-Selective Nitration of Phenols Using Phosphorus Based Ionic Liquids

Authors(4) :-Anil U. Chopade ,Yeshawant V. Dharap, Dinesh T. Gajulwar, Manojkumar U. Chopade

Highly regio-selective mono nitration of phenols is accomplished using hydrated ferric nitrate as nitrating agent in phosphorous based ionic liquids in particular phosphonium ionic liquids viz, trihexyl (tetradecyl) phosphoniumtetrafluoroborate (PIL-1) and trihexyl (tetradecyl) phosphonium chloride (PIL-2) as the solvents. Trihexyl (tetradecyl) phosphoniumtetrafluroborate (PIL-1) is found to be more suitable even though the nitration rate was low. The higher rate of nitration in case of trihexyl (tetradecyl) phosphonium chloride PIL-2 may be due to high acidity. In particular, excellent paraselectivities were observed for the unsubstituted, orthoand metasubstituted phenols. The quantitative conversion was observed during all reactions making this methodology attractive for synthetic and commercial utility.
Anil U. Chopade ,Yeshawant V. Dharap, Dinesh T. Gajulwar, Manojkumar U. Chopade
Phosphonium Ionic Liquids, Nitration, Phenols: Regio-Selective
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Publication Details
  Published in : Volume 3 | Issue 9 | November-December 2017
  Date of Publication : 2017-12-15
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 116-119
Manuscript Number : IJSRST173923
Publisher : Technoscience Academy
PRINT ISSN : 2395-6011
ONLINE ISSN : 2395-602X
Cite This Article :
Anil U. Chopade ,Yeshawant V. Dharap, Dinesh T. Gajulwar, Manojkumar U. Chopade, "Regio-Selective Nitration of Phenols Using Phosphorus Based Ionic Liquids", International Journal of Scientific Research in Science and Technology(IJSRST), Print ISSN : 2395-6011, Online ISSN : 2395-602X, Volume 3, Issue 9, pp.116-119, November-December-2017.
Journal URL : http://ijsrst.com/IJSRST173923

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