Carbon Dioxide → Ethanedioic acid, 1-ethyl ester, potassium salt (1:1)

Participants

Reaction Conditions

Reaction Steps

A suspension of potassium bicarbonate (100 g; 1.00 mols) in diethyl oxalate (146.1 g; 1.00 mols) is added with water (26 g) and heated at a temperature of 50÷55° C. for 6÷8 hours until carbon dioxide evolution ceases. The suspension is cooled to 40° C., added with acetone (250 mL) and cooled to 15÷20° C. The resulting solid is filtered, washed with acetone (2×25 mL) and dried at 50° C. under vacuum to obtain potassium monoethyl oxalate (150.0 g, 99% purity, yield 96%).

Provenance & Evidence