Mass spectrometry of some methyl esters of  N ‐4‐pyrimidinylamino acids: Rearrangements of the ions occurring on electron‐impact ionization | Zendy

Plaziak Adam S. | Zendy; Celewicz Lech | Zendy; Spychala Jaroslaw | Zendy; Golankiewicz Krzysztof | Zendy

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Mass spectrometry of some methyl esters of N ‐4‐pyrimidinylamino acids: Rearrangements of the ions occurring on electron‐impact ionization

Author(s) -

Plaziak Adam S.,

Celewicz Lech,

Spychala Jaroslaw,

Golankiewicz Krzysztof

Publication year - 1990

Publication title -

organic mass spectrometry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.475

H-Index - 121

eISSN - 1096-9888

pISSN - 0030-493X

DOI - 10.1002/oms.1210250202

Subject(s) - electron ionization , chemistry , methanol , mass spectrometry , ion , molecule , ionization , medicinal chemistry , methyl radical , mass spectrum , polyatomic ion , organic chemistry , chromatography , radical

The electron‐impact‐induced mass fragmentations of methyl esters of N ‐(1 H ‐2‐oxo‐4‐pyrimidinyl)ainino acids are reported. The loss of a ·COOCH 3 radical and the elimination of a methanol molecule were observed and possible mechanisms of these processes are proposed. The loss of a ·COOH radical and elimination of water were established, which suggests the rearrangement of the investigated esters into isomeric N ‐4‐pyrimidinylamino acids.

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