Tetrahedron

A new synthesis of α-amino acids—III: Amidoalkylation of active methylene compounds with glyoxylic acid derivatives

D Ben-Ishai, J Altman, Z Bernstein, N Peled

Index: Ben-Ishai,D. et al. Tetrahedron, 1978 , vol. 34, p. 467 - 473

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Citation Number: 23

Abstract

The synthesis of N-acyl derivatives of γ-keto-α-amino acids (3, 4, 5) by the amidoalkylation of 1, 3-dicarbonyl compounds with glyoxylic acid-amide adducts (1, 2) is described. The γ-keto- α-amino acid derivatives (4, 5) were further converted to the corresponding butenolides (6, 7) and to pyrazolylglycine (12).

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