Structural characterization of acetylpyridinium–ethyl pyruvate adducts by electrospray ionization mass spectrometry | Zendy

Bartók Mihály | Zendy; Bartók Tibor | Zendy; Szöllősi György | Zendy; Felföldi Károly | Zendy

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Structural characterization of acetylpyridinium–ethyl pyruvate adducts by electrospray ionization mass spectrometry

Author(s) -

Bartók Mihály,

Bartók Tibor,

Szöllősi György,

Felföldi Károly

Publication year - 2002

Publication title -

journal of mass spectrometry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.475

H-Index - 121

eISSN - 1096-9888

pISSN - 1076-5174

DOI - 10.1002/jms.359

Subject(s) - chemistry , adduct , electrospray ionization , mass spectrometry , pyridinium , acetic anhydride , pyridine , ethyl lactate , electrospray , medicinal chemistry , organic chemistry , chromatography , catalysis

The reactions of ethyl pyruvate with acetic anhydride and pyridine were studied by electrospray ionization mass spectrometry (ESI‐MS). Ethyl 2‐acetoxy‐2‐pyridiniumpropionate (1) ( m / z 238) resulting from the reaction of the acetylpyridinium cation with ethyl pyruvate, and the adduct of ethyl 2‐acetoxyacrylate with a pyridinium cation (2), bound together by non‐covalent interactions ( m / z 238), were identified by ESI‐MS for the first time. Structures 1 and 2 cannot be distinguished, probably because one may be converted into the other and vice versa. Copyright © 2002 John Wiley & Sons, Ltd.

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