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Screening and assignment of phenylboronic acid and its anhydride formation by NMR spectroscopy

Chaudhari, Sachin Rama (2015) Screening and assignment of phenylboronic acid and its anhydride formation by NMR spectroscopy. In: CHEMICAL PHYSICS LETTERS, 634 . pp. 95-97.

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Official URL: http://dx.doi.org/10.1016/j.cplett.2015.05.061

Abstract

The study discusses an approach that allows simultaneous determination of boronic acid and its anhydride without the need for tedious physical separation of the mixture. The assignment of the proton spectra of monomer, dimer and trimer was achieved by combining utility of 1D and 2D experimental techniques including 2D DOSY. The differential intensities of NMR peaks and supplementary resonances were detected in low polar solvents, such as, chloroform, toluene and in a non-polar solvent benzene. A fascinating phenomenon is observed at lower temperature where there is a formation of aryl boronic acid with the disappearance of boraxine formation. (C) 2015 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Department/Centre: Division of Chemical Sciences > NMR Research Centre (Formerly Sophisticated Instruments Facility)
Depositing User: Id for Latest eprints
Date Deposited: 03 Sep 2015 05:53
Last Modified: 28 Feb 2019 11:57
URI: http://eprints.iisc.ac.in/id/eprint/52287

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