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.

Authors and Affiliations

Anil U. Chopade
Deparment of Chemistry, Dahiwadi College Dahiwadi, Tal. Man, Satara ,India
Yeshawant V. Dharap
Division of Organic Chemistry, National Chemical Laboratory, Pune, India
Dinesh T. Gajulwar
Gramonnati Mandal’s Arts, Comm. & Science College, Narayngaon Pune, India
Manojkumar U. Chopade
Deparement of Chemistry, Sant Dnyaneshwer Mahavidyalaya, Soegaon, Aurangabad, India

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.
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