Methacrylic Acid → Methylenebisacrylamide

Participants

Reaction Steps

The methods according to the present invention starting the methyl, ethyl, or butyl esters of acrylic acid or of methacrylic acid (R2 =methyl, ethyl, butyl) are particularly preferred, since they can be carried out on a technical scale and the alcohols which are cleaved in both reactions (R2OH of IV) can be easily removed from the reaction mixture. The embodiment employing primary amines should be particularly mentioned, i.e. wherein R3 represents hydrogen. Further, R4 preferably stands for a substituent which imparts to the amine a boiling point of 80° C. or more. Further, reaction with an aminoalkyl amine, particularly with dialkylaminoalkyl amines such as dimethylaminopropyl amine, or with dimethylaminoneopentyl amine inter alia is of interest, as is reaction with an aralkyl amine, and an aromatic amine such as aniline, naphthylamine, and benzylamine, as well as reaction with an alkylene diamine to form a bis-acrylamide or bis-methacrylamide.

Provenance & Evidence