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ChemInform Abstract: Hydrogen-Deuterium Exchange in Dimethylpyridines.

✍ Scribed by N. KEBEDE; J. W. PAVLIK

Publisher
John Wiley and Sons
Year
2010
Weight
27 KB
Volume
28
Category
Article
ISSN
0931-7597

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✦ Synopsis

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

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## Abstract Dimethylpyridines undergo deuterium‐hydrogen exchange when heated in deuterium oxide containing potassium carbonate at ring positions 2 and 6 when these positions are unsubstituted and at methyl groups located at ring positions 2,4, and 6 exclusively.

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The gas-phase hydrogen-deuterium exchange of phosphorothioate d(GTCAG) and d(TCGAT) has been examined using electrospray Fourier transform ion cyclotron resonance (FTICR) mass spectrometry. The exchange has been monitored for the [M-2H] 2À , [M-3H] 3À , and [M-4H] 4À charge states. The mole fraction