Potassium Carbonate → Bis(2-methylpropyl) dicarbonate

Participants

Reaction Conditions

Reaction Steps

Isobutyl chloroformate (136.76 g, 1.0 mol.) was added dropwise to a stirred mixture of powered, anhydrous potassium carbonate (77 g, 0.56 mol) in acetonitrile at such a rate as to maintain a reaction temperature of 40° C. The reaction mixture was stirred for six (6) hours at ambient temperature and then allowed to stand overnight prior to work-up. The crude product was purified by vacuum distillation, and the fraction collected between 58° and 62° C. at 0.05-0.10 mmHg was found to be di-isobutyl dicarbonate. YIELD=86.93 g=80%.

Provenance & Evidence