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C-Alkyl-azoliums, -dithiolyliums, etc

In 2-alkoxypyrazoliums (535) methyl groups at positions 3 and 5 are active in this way pyrazoles (536) were prepared (X=D, I, OMe) (92JCS(Pi)2555 . [Pg.443]

In general, methyl groups in the 4- and 5-positions of imidazole, oxazole and thiazole do not undergo such deprotonation-mediated reactions, even when the ring is cationic. [Pg.443]

Reactivity of bive-membered Kings with Two or More Heteroatoms [Pg.444]

See other pages where C-Alkyl-azoliums, -dithiolyliums, etc is mentioned: [Pg.40] [Pg.89] [Pg.442] [Pg.475] [Pg.565] [Pg.40] [Pg.89] [Pg.40] [Pg.89] [Pg.40] [Pg.89] [Pg.442] [Pg.475] [Pg.565] [Pg.40] [Pg.89] [Pg.40] [Pg.89]

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Azolium

C-Alkyl

C-Alkylation