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2-Pyrrolesulfonic acids

Heterocyclic compounds, in particular, are readily sulfonated by the pyridine-sulfur trioxide adduct 2-pyrrolesulfonic acid is formed from pyrrole,174 and 5-acetyl-3-pyrrolesulfonic acid from 2-acetylpyrrole.175... [Pg.623]

The other arguments (06KGS1647, 07KGS34) are based on the assumption that the presence of at least a small amount of the less favorable intermediate B in the reaction mixture, which makes it possible for the reaction to proceed by the less hindered route to the formation of jS-pyrrolesulfonic acid, can be ensured as the result of the a/)S-migration of the SO3 group in the cr-complex (Scheme 28). [Pg.174]

See other pages where 2-Pyrrolesulfonic acids is mentioned: [Pg.461]    [Pg.452]    [Pg.452]    [Pg.463]    [Pg.452]    [Pg.569]    [Pg.270]    [Pg.270]    [Pg.415]    [Pg.820]    [Pg.461]    [Pg.217]    [Pg.452]    [Pg.174]    [Pg.452]    [Pg.463]    [Pg.452]    [Pg.820]    [Pg.569]    [Pg.270]    [Pg.270]    [Pg.415]    [Pg.820]    [Pg.217]    [Pg.820]   
See also in sourсe #XX -- [ Pg.623 ]



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