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Enamine Chemistry I. Carbanion Alkylations

✍ Scribed by T.A. Bryson; R.B. Gammill

Book ID
104243178
Publisher
Elsevier Science
Year
1974
Tongue
French
Weight
183 KB
Volume
15
Category
Article
ISSN
0040-4039

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✦ Synopsis

Enaminoketones or vinylogous amides have been used as key intermediates in a variety of synthetic investigations' lending importance to a recent study of carbanion alkylation of these systems.L In this latter study enaminoketones such as lwere converted into their extended enolate (2, with &-butyllithium in THF) and alkylated with a variety of alkylating agents, affording the product of exclusive y-alkylation (3). We have also been investigating this same type of reaction process on a series of enaminoketones, esters and nitriles and have n-butyllithium RX come to the same conclusion; i.e. the carbanion alkylation of these systems results in y-carbon-

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