CARBOXYLATION OF ACTIVE METHYLENE COMPOUNDS USING THE REAGENT OF 1,8-DIAZABICYCLO(5.4.0)-7-UNDECENE AND CARBON DIOXIDE
Various active methylene compounds were carboxylated by employing the reagent system, 1,8-diazabicyclo(5.4.0)-7-undecene and carbon dioxide, in organic solvents or without solvent at room temperature.