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Abstract
The reactivity of gem-ester group in cyclohexanone-1,1-dicatboxylates (1) was studied by reaction with Cu/quinoline and eerie ammonium nitrate. The resultant cyclohexanone-1-carboxylic acids (2) and cyclohexan-1,4-diones (3) were made use to develop selena/thiadiazole rings by exploiting α-ketomethylene group (6-9). Attempts to prepare cyclohexanones met without success. All the new compounds were characterized by elemental analyses and IR and 1H NMR spectral data