Maleic Anhydride → 826-62-0

Participants

Reaction Steps

More specifically, in the step (a2) above, compound 2 is dissolved in an organic solvent and cooled at temperature in the range of from about −35° C. to about −25° C. Maleic anhydride, preferably in a solution and in an equal amount, is slowly added to the resulting solution. The reaction mixture is then stirred for about 8 to 12 hours at temperature in the range of from about −35° C. to about −25° C. After which the reaction temperature is allowed to reach room temperature. The reaction mixture is stirred for additional about 8 to 12 hours, and the 5-norbornene-2,3-dicarboxylic anhydride is obtained after removing the organic solvent.

Provenance & Evidence