83431-45-2Relevant academic research and scientific papers
1,3-DIPOLAR CYCLOADDITIONS OF YLIDE OF 5-NITRO-2-FURFURYLPYRIDINIUM BROMIDE IN INDOLIZINE SYNTHESIS
Stetinova, Jarmila,Dandarova, Miloslava,Kovac, Jaroslav,Mesarosova, Darina,Lesko, Jan
, p. 1738 - 1745 (2007/10/02)
Substituted 3-(5-nitro-2-furyl)indolizines III-X were synthesized by 1,3-dipolar cycloaddition reaction of the ylide II, generated from 5-nitro-2-furfurylpyridinium bromide (I), with acrylonitrile, ethyl acrylate, diethyl maleate, benzalacetophenone, ethyl 3-(5-nitro-2-furyl)acrylate, (5-nitro-2-furfurylidene)acetophenone, β-nitrostyrene and dimethyl acetylenedicarboxylate.The structure of these products is discussed on the basis of their 1H NMR and mass spectra.
