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2-Picoline nitronium tetrafluoroborate

N-Halogenation and other oxidative reactions of pyridines and related heterocycles have been re-viewed. ° Thus, pyridines and some diazines can be aminated by mesitylenesulfonylhydroxylamine (32) and similar reagents. / -Nitration of 2-picoline by nitronium tetrafluoroborate gives the salt (46) which is itself a nitrating agent. [Pg.750]

The nitration of olehns, particularly those containing electron donating substituents, by nitronium salts is complicated by side reactions and does not always lead to the expected result. In many instances nitration with nitronium tetrafluoroborate takes place with higher yields in the presence of a-picoline [91,132]. In this case the nitrating agent is apparently not the nitronium salt but 2-methyl-W-nitropyridinium tetrafluoroborate, which is formed rapidly when NO2 BFJ is mixed with a-picoline [73b],... [Pg.189]

See other pages where 2-Picoline nitronium tetrafluoroborate is mentioned: [Pg.130]   
See also in sourсe #XX -- [ Pg.750 ]

See also in sourсe #XX -- [ Pg.750 ]

See also in sourсe #XX -- [ Pg.7 , Pg.750 ]

See also in sourсe #XX -- [ Pg.7 , Pg.750 ]

See also in sourсe #XX -- [ Pg.750 ]



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4-Picoline

Nitronium

Nitronium tetrafluoroborate

Picolin

Picolinates

Picolines

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