Process for the production of n-substituted acrylic acid amides

Details Process for the production of n-substituted acrylic acid amides Process for the production of n-substituted acrylic acid amides

C - Chemistry, Metallurgy

07

D

260/554.1, 260/2

C07D 307/36 (2006.01) C07D 295/18 (2006.01) C07D 295/182 (2006.01) C07D 493/08 (2006.01)

Patent

CA 1212673

A B S T R A C T The present invention relates to a process for the production of N-substituted acrylic acid amides by conversion of 2-carboalkoxy-t- oxabicyclo(2,2,1)hept-5-enes with primary or secondary amines to 2-carboxamide-7-oxabicyclo(2,2,1)hept-5-enes and the thermal decomposition of the latter, preferably in the presence of Lewis acids and in a vacuum, to furane and N-substituted acrylic acid amides. The process according to the invention results in high purity N-substituted acrylic acid amides that are, in the main, free of bifunctional monomers which would disrupt the subsequent polymerisation of the N-substituted acrylic acid amides by undesired cross-linking.

437237

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