Maleic Anhydride → HCID 86751388, compound

Participants

Reaction Steps

A three-liter resin kettle equipped with mechanical stirrer, nitrogen sparge tube, and addition funnel is charged with maleic anhydride (1713 g, 17.3 mol). The anhydride is heated to 60° C. to melt it. 2-Methyl-1,3-propanediol (787 g, 8.73 mol) is added at a rate effective to keep the exothermic reaction mixture at a temperature less than about 100° C. Following diol addition, the mixture is heated at 85° C. for another 2 h. The product (2475 g, 99% yield) is a clear, viscous liquid. Analysis by 1H and 13C NMR spectroscopy indicates that the product is the desired 2:1 adduct of maleic anhydride and 2-methyl-1,3-propanediol.

Provenance & Evidence