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Alkylcobalamins, substituted

The reaction of alkylcobalamins with metal electrophiles, such as Hg(II), has been studied extensively since MeBjj may be responsible for formation of highly toxic meth-ylmercury(II) compounds under environmental conditions ". The reaction mechanism has been studied for both alkylcobaloximes and alkylcobalamins " . Reaction of alkylcobaloximes with Hg(II) salts can be described as a bimolecular electrophilic substitution (Se2), which takes place with inversion of configuration . [Pg.599]

Mechanism of Elimination Reactions of Substituted Alkylcobaloximes and Alkylcobalamins... [Pg.9]

In view of the reversibility of / -elimination reactions in the chemistry of substituted alkylcobalamins and -cobaloximes and the potential biochemical importance of such reactions, we will now discuss the mechanism of these remarkable reactions (9). [Pg.9]

Table IV. Rates of 7r-Complex Formation From Substituted Alkylcobaloximes and Alkylcobalamins at 25, and Co (I) Pearson Nucleophilicities"... Table IV. Rates of 7r-Complex Formation From Substituted Alkylcobaloximes and Alkylcobalamins at 25, and Co (I) Pearson Nucleophilicities"...
See other pages where Alkylcobalamins, substituted is mentioned: [Pg.69]    [Pg.79]    [Pg.35]    [Pg.599]    [Pg.126]    [Pg.451]    [Pg.454]    [Pg.6]    [Pg.14]    [Pg.521]    [Pg.451]    [Pg.454]    [Pg.10]   
See also in sourсe #XX -- [ Pg.9 ]



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Alkylcobalamins

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