Process for preparing n-vinyl amides

Details Process for preparing n-vinyl amides Process for preparing n-vinyl amides

C - Chemistry, Metallurgy

07

C

260/557.2, 260/5

C07C 209/78 (2006.01) C07C 211/21 (2006.01) C07C 231/12 (2006.01)

Patent

CA 1330664

ABSTRACT N-vinyl amides having the general structural formula: CH2 = CH-NHCOR1 wherein R1 is hydrogen, a C1 to C6 alkyl group or a C6-C9 aryl or substituted aryl group, are formed by cracking carboxylic acid amides having the general structure formula: Image wherein R1 is as described above, and R2 is a C1 to C9 alkoxy, carboxy or carboxamide group. Said carboxylic acid amides are cracked by heating, to a temperature of about 150°-350°C, in the presence of a porous, hydrogen-abstracting catalyst.

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