10595-45-6Relevant articles and documents
Microspheres useful for therapeutic vascular embolization
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Page/Page column 49; 50, (2016/10/04)
Provided herein, for example, are microspheres comprising a gelatin or gelatin substitute and a copolymer of a N-tris-hydroxymethyl methylacrylamide monomer unit, a diethylaminoethylacrylamide monomer unit and a N,N-methylene-bis-acrylamide monomer unit. Also provided are methods of producing microspheres comprising a gelatin or gelatin substitute and a copolymer of a N-tris-hydroxymethyl methylacrylamide monomer unit, a diethylaminoethylacrylamide monomer unit and a N,N-methylene-bis-acrylamide monomer unit. Further provided herein, for example, are compositions comprising the microspheres and methods of using the microspheres and compositions thereof.
Process for the manufacture of α,β-unsaturated N-substituted carboxylic acid amides
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, (2008/06/13)
Process for the manufacture of α,β-unsaturated N-substituted carboxylic acid amides of the general formula STR1 in which R1 represents H or CH3 R2 represents H or CH3, and Y represents a divalent straight-chain or branched organic radical having 2-30 carbon atoms, and R3 represents H or the radical of an amine of the formula --N(R4)(R5), in which R4 and R5 represent alkyl radicals having 1 to 4 carbon atoms, by reacting β-substituted carboxylic acid amides of the formula STR2 in which Z represents OH or the radical R6 O--, in which R6 is an alkyl radical having 1 to 4 carbon atoms, with amines of the general formula at temperatures in the range of 100° to 200° C., preferably 120° to 175° C., with the elimination of ammonia, and heating the resulting N-substituted β-hydroxycarboxylic or β-alkoxycarboxylic acid amides in the presence of catalysts, water or alcohol, respectively, being split off. The water is split off at temperatures of 100°-250° C. with acidic catalysts such as phosphoric acid, or basic catalysts such as sodium hydroxide, and alcohol is split off at 70°-150° C. with basic catalysts such as sodium or potassium hydroxide. The reaction product is separated by distillation, optionally in vacuo.
