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Halogen-lithium exchange reactions aryl substituents

In principle, each of the above protodelithiation reactions is in equilibrium. It is clear that, in practice, they are not. The protonating species, HBr, isopropanol and 2-butanol, are simply too acidic for the reaction to be reversible. Although the hydrogen/lithium exchange equilibria cannot be smdied in both directions, halogen/Uthium exchange reactions with aryl substituents evidently are true equilibrium processes. Winkler and Winkler studied reaction 11 (among others), in either diethyl ether or in THF at 25 °C. [Pg.129]


See other pages where Halogen-lithium exchange reactions aryl substituents is mentioned: [Pg.126]    [Pg.41]    [Pg.241]    [Pg.20]    [Pg.304]    [Pg.249]    [Pg.632]    [Pg.442]    [Pg.292]    [Pg.442]    [Pg.371]    [Pg.215]    [Pg.1306]    [Pg.1308]    [Pg.1308]    [Pg.1306]   
See also in sourсe #XX -- [ Pg.129 , Pg.130 ]




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5-Aryl-3-halogen

Aryl exchange reactions

Aryl lithium reaction

Aryl substituent

Aryl substituents

Exchange reactions halogens

Halogen exchange

Halogen substituents

Halogen-lithium exchange reactions

Halogenation reactions

Halogenation substituents

Halogenes, substituents

Lithium aryl

Lithium arylation

Lithium aryls

Lithium-halogen exchange

Reactions halogens

Reactions lithium aryls

Substituent halogens

Substituents reactions

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