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On the nature of the oxidative heterocoupling of lithium enolates.


ABSTRACT: The coupling of enolates through single-electron oxidation is one of the most direct routes for generating 1,4-dicarbonyls. Recent work on the intermolecular heterocoupling of equimolar amounts of two different enolates through single-electron oxidation has shown that synthetically useful yields beyond those predicted by statistics can be obtained. To determine the underlying basis for the selective formation of heterocoupled products, kinetic, (7)Li NMR, and synthetic studies were performed. The collection of data obtained from these experiments shows that the selective formation of heterocoupled products is a consequence of heteroaggregation of lithium enolates.

SUBMITTER: Casey BM 

PROVIDER: S-EPMC3145047 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature

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On the nature of the oxidative heterocoupling of lithium enolates.

Casey Brian M BM   Flowers Robert A RA  

Journal of the American Chemical Society 20110708 30


The coupling of enolates through single-electron oxidation is one of the most direct routes for generating 1,4-dicarbonyls. Recent work on the intermolecular heterocoupling of equimolar amounts of two different enolates through single-electron oxidation has shown that synthetically useful yields beyond those predicted by statistics can be obtained. To determine the underlying basis for the selective formation of heterocoupled products, kinetic, (7)Li NMR, and synthetic studies were performed. Th  ...[more]

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