Issue 38, 2015
From the journal:

Organic & Biomolecular Chemistry

Selective binding and extraction of aqueous dihydrogen phosphate solutions via three-armed thiourea receptors†

Evgeny V. Beletskiy‡a  and  Steven R. Kass*a  

* Corresponding authors

a Department of Chemistry, University of Minnesota, 207 Pleasant St. S.E., Minneapolis, MN 55455, USA
E-mail: kass@umn.edu

Abstract

A series of neutral anion receptors with one to three thiourea arms were synthesized and their binding to tetrabutylammonium chloride, acetate, and dihydrogen phosphate salts in aqueous DMSO mixtures was examined. The three-armed thiourea host was found to strongly and selectively bind H2PO4− even in DMSO solutions containing up to 30% water. This enabled the dihydrogen phosphate salt to be extracted from water into chloroform in its dibasic form despite the high heat of the hydration of HPO42−.

Graphical abstract: Selective binding and extraction of aqueous dihydrogen phosphate solutions via three-armed thiourea receptors

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Article information

DOI
https://doi.org/10.1039/C5OB01450F
Article type
Paper
Submitted
15 Jul 2015
Accepted
10 Aug 2015
First published
10 Aug 2015

Org. Biomol. Chem., 2015,13, 9844-9849

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Selective binding and extraction of aqueous dihydrogen phosphate solutions via three-armed thiourea receptors

E. V. Beletskiy and S. R. Kass, Org. Biomol. Chem., 2015, 13, 9844 DOI: 10.1039/C5OB01450F

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