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Imidinium ions

Imidinium ions such as (59), formed from formamidine precursors by C—X bond cleavage, are more reactive than carbocations, being trapped by solvent or nucleophile at not quite diffusion-controlled rates, in general.102 The reaction rates are not... [Pg.284]

In another variant the combination of benzaldehyde, ethyl aminocrotonate benzoic acid and ammonium acetate in EtOFl at room temperature yields a tetrahydropyr-imidinium ion, whereas heating leads to a tetrahydropyridinium acetate again through attack at the a-methyl group of the enaminone25 (equation 17). [Pg.531]


See other pages where Imidinium ions is mentioned: [Pg.78]    [Pg.78]   
See also in sourсe #XX -- [ Pg.284 ]

See also in sourсe #XX -- [ Pg.284 ]

See also in sourсe #XX -- [ Pg.97 , Pg.284 ]




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