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Halogens mass spectral fragmentation

C led to metallation in the 2-position and not addition to the azomethine bond. Reaction with DMF gave the 2-formyl-derivative. The 3-lithio-derivative was obtained by halogen-metal exchange with 3-bromothieno[2,3-6]pyridine. Further studies of the chlorination and 5-oxidation of thieno[2,3-6]pyridine have been reported. The mass-spectral fragmentation patterns of a series of thieno-pyridine A -oxides, 5-oxides, and 55-dioxides have been elaborated. The reductive acetylation of nitro-thieno-pyridines has been studied. Polymethine... [Pg.292]

See other pages where Halogens mass spectral fragmentation is mentioned: [Pg.360]    [Pg.1949]    [Pg.86]    [Pg.220]    [Pg.291]    [Pg.157]    [Pg.215]    [Pg.441]    [Pg.387]    [Pg.865]    [Pg.158]    [Pg.21]   
See also in sourсe #XX -- [ Pg.184 , Pg.185 , Pg.186 , Pg.187 , Pg.188 ]



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Mass fragmentation

Mass spectral

Mass spectral fragmentation

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