Synthesis of 2,5-Bis(ethoxycarbonyl)-1,4-cyclohexanedione Derivatives and Investigation of their Tautomerism

It has been shown that the introduction of tautomerizable units of 2,5-bis(ethoxycarbonyl)-1,4-cyclohexanedione and its amino derivatives into the polymer chain leads to a shift of the tautomeric equilibrium and to the appearance of monoenolic or monoenaminic units.