1,5,7‐Triazabicyclo[4.4.0]dec‐1‐ene‐Mediated Acetylene Dicarboxylation and Alkyne Carboxylation Using Carbon Dioxide

Abstract Direct carboxylation of acetylene with CO 2 was carried out in the presence of 1,5,7‐triazabicyclo[4.4.0]dec‐1‐ene (TBD); subsequent reduction of dicarboxylated acetylene produces commercially valuable succinate salts. This metal‐free carboxylation has potential economic and environmental impact by utilizing non‐petroleum feedstocks (acetylene) and CO 2 and by producing valuable chemical feed stocks.