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ChemInform Abstract: N-Substituted β-Enamino Acid Derivatives: A New Approach to Fluorinated β-Enamino Esters.

✍ Scribed by S. FUSTERO; B. PINA; A. SIMON-FUENTES

Publisher
John Wiley and Sons
Year
2010
Weight
32 KB
Volume
28
Category
Article
ISSN
0931-7597

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✦ Synopsis

1997 aminocarboxylic acids aminocarboxylic acids (hydrazinocarboxylic acids) and esters (acyclic compounds) P 0270 52 -083 N-Substituted β-Enamino Acid Derivatives: A New Approach to Fluorinated β-Enamino Esters.

-Fluorinated chlorides (I) react with lithium ester enolates of (II) to give a mixture of β-imino esters (III) and β-enamino esters ( IV). The product distribution is mainly influenced by the length of the perfluoroalkyl chain. The esters (IV) appear exclusively as the Z-tautomers. Furthermore, this approach is successfully applied to the synthesis of chiral β-enamino amides such as (VI). -(FUSTERO, S.; PINA,

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