Chemistry of iminofurans: XIII. Recyclization of 4-arylamino-2-<Emphasis Type="Italic">tert</Emphasis>-butyl-5-oxo-2,5-dihydrofuran-2-yl acetates with ethyl cyanoacetate |
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| Authors: | N M Igidov A V Zakhmatov A E Rubtsov |
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| Abstract: | Recyclization of 4-arylamino-2-tert-butyl-5-oxo-2,5-dihydrofuran-2-yl acetates with ethyl cyanoacetate in the presence of triethylamine afforded the corresponding ethyl 2-amino-1-aryl-5-(3,3-dimethyl-2-oxobutylidene)-4-oxo-1H-4,5-dihydropyrrole-3-carboxylates. |
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