SYNTHESIS OF THE ETHYL ESTERS OF 4-(3-PYRIDYL)- AND 4-(4-PYRIDYL)-2-OXOBUTENOIC ACIDS

Authors

  • Дз. Э. Силе Latvian Institute of Organic Synthesis, Riga LV-1006
  • B. А. Славинская Latvian Institute of Organic Synthesis, Riga LV-1006
  • Г. Ф. Розенталь Latvian Institute of Organic Synthesis, Riga LV-1006
  • Ю. Ю. Попелис Latvian Institute of Organic Synthesis, Riga LV-1006
  • Ю. Ю. Балодис Latvian Institute of Organic Synthesis, Riga LV-1006
  • Э. Лукевиц Latvian Institute of Organic Synthesis, Riga LV-1006

Keywords:

ketals, 3- and 4-pyridinecarbaldehydes, 2-oxobutenoate esters, ketal hydrolysis, aldehyde condensations

Abstract

We have developed a method for the synthesis of ethyl 4-(3-pyridyl)- and 4-(4-pyridyl)-2-oxobutenoates by condensation of 3-pyridinecarbaldehyde and 4-pyridinecarbaldehyde monohydrate respectively with ethyl pyruvate, esterifiction of the target acids, and hydrolysis of the corresponding ethyl ester ketals in the presence of FeCl3·6H2O.

How to Cite
Sile, Dz.; Slavinska, V. A.; Rozental, G.; Popelis, J.; Balodis, Yu.; Lukevics, E. Chem. Heterocycl. Compd. 2002, 38, 1. [Khim. Geterotsikl. Soedin. 2002, 1.]

For this article in the English edition, see DOI https://doi.org/10.1023/A:1015679118975

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Published

2002-03-25

Issue

No. 3 (2002)

Section

Original Papers