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Kröhnke's salts and their ester analogs in reactions with ethoxymethylidene derivatives of CH acids

Дмитрий А. Пономаренко, Геннадий Е. Хорошилов, Денис А. Красников
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Abstract


2-Bromo(chloro)-N-(2-ethoxy(methoxy)-2-oxoethyl)pyridinium halides react with (ethoxymethylidene)malononitrile and ethyl (ethoxymethylidene)cyanoacetate to afford ethyl(methyl) 2-amino-1-cyanoindolizine-3-carboxylate and ethyl(methyl) 1-cyanoindolizine-3-carboxylate, respectively.

How to Cite
Ponomarenko, D. A.; Khoroshilov, G. E.; Krasnikov, D. A. Chem. Heterocycl. Compd. 2015, 51, 560. [Khim. Geterotsikl. Soedin. 2015, 51, 560.]

For this article in the English edition see DOI 10.1007/s10593-015-1736-z

 


Keywords


methyl 2-amino-1-cyanoindolizine-3-carboxylate; 2-bromo(chloro)-N-(2-ethoxy(methoxy)-2-oxoethyl)pyridinium salts; ethyl 1-cyanoindolizine-3-carboxylate; (ethoxymethylidene)malononitrile; ethyl (ethoxymethylidene)cyanoacetate

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