SEARCH Articles Figures Tables 1,3-Butadiene acidity 1.3- Butadiene dicarboxylation 1.3- Butadiene-2,3-dicarboxylic acid Butadiene Diels-Alder Butadiene reactions Dicarboxylic acids, reaction Diels acid Diels-Alder reaction acids Retro Diels-Alder reaction Retro-Diels-Alder Retro-reaction