Process for the synthesis of citraconimides
AssigneeAkzo America Inc.
InventorsAuke G. Talma, Hendrika P. M. Hooft, Anna G. van de Bovenkamp-Bouwman
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Abstract
The present invention relates to an improved synthesis method for the making of citraconimides wherein a citraconic anhydride is reacted with 0.5 to 2.0 equivalents of at least one amine salt. This process may be carried out in a solvent and generally leads to excellent yields of the citraconimides with high selectivity and easy purification. The present inventional so relates to a process for the production of citraconic anhydride from itaconic anhydride with an amine or phosphine catalyst and in a cosolvent.
Claims9
A process for the preparation of citraconimides which comprises reacting citraconic anhydride with 0.5-2.0 equivalents of at least one primary amine salt to form a citraconimide.
Dependencies are inferred from the claim text.