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Enamines as intermediates in isotope exchange and halogenation reactions

ENAMINES AS INTERMEDIATES IN ISOTOPE EXCHANGE AND HALOGENATION REACTIONS [Pg.63]

For reactions which usually involve enol or enolate intermediates, enamine formation has been postulated for primary and secondary amine catalysis in order to explain abnormally high catalytic effects and abnormal rate laws. Shilov, Yashinov and coworkers (for the last paper of the series, see Volkova [Pg.63]

Equilibrium constants for acetal and enol-ether formation (25 °C) [Pg.64]

Carbonyl formation0/ enol ether / Enol ether formation 1  [Pg.64]

In contrast to primary amine catalysis, the enamine mechanism has been ruled out for D—H exchange in isobutyraldehyde catalysed by secondary amines. Catalytic rate constants were explained by considering only the [Pg.65]




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A-halogenated

A-halogenation

And exchange reactions

Enamine reaction

Enamine, intermediate

Enamines as intermediates

Enamines as reaction intermediates

Enamines halogenation

Exchange isotopic

Exchange reactions halogens

Halogen exchange

Halogenation reactions

In halogenation

Intermediate exchange

Intermediates in reaction

Isotope exchange reactions

Isotopes exchange

Isotopic exchange and

Reactions a-halogenation

Reactions halogens

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