Unusual course of “enolate-imine” condensation in approach to β-lactams

Z. R. Valiullina; F. A. Gimalova; L. V. Spirikhin; M. S. Miftakhov

doi:10.1134/S1070428017050220

Unusual course of “enolate-imine” condensation in approach to β-lactams

Authors: Valiullina Z.R.¹, Gimalova F.A.¹, Spirikhin L.V.¹, Miftakhov M.S.¹
Affiliations:
1. Ufa Institute of Chemistry
Issue: Vol 53, No 5 (2017)
Pages: 787-789
Section: Short Communications
URL: https://journals.rcsi.science/1070-4280/article/view/216282
DOI: https://doi.org/10.1134/S1070428017050220
ID: 216282

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Abstract

In reaction of methyl (Е)-3-(methoxycarbonyl)methylimino-2,2-dimethylpropanoate with enolate of ethyl 3-hydroxybutanoate an abnormal reaction product was isolated, 2-methyl 4-ethyl-(2S*,3S*,4S*,5S*)-3-methyl-5-(2-methyl-1-methoxy-1-oxopropan-2-yl)pyrrolidine-2,4-dicarboxylate.