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

✍ Scribed by Mihály Bartók; Tibor Bartók; György Szöllősi; Károly Felföldi

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
112 KB
Volume
37
Category
Article
ISSN
1076-5174

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✦ Synopsis

Abstract

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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