| abstract |
The present invention relates to a process for preparing (meth)acrylic esters (F) of N,N‑substituted amino alcohols, by transesterifying N,N‑substituted amino alcohols (I) in which Y and Z are each independently C 1 -C 20 -alkyl, C 3 -C 15 -cycloalkyl, aryl, or Y and Z together with the nitrogen atom connecting them form a 5‑ to 9‑membered saturated heterocyclic radical which optionally has oxygen, sulfur, nitrogen or C 1 -C 4 -alkyl-substituted nitrogen as a further heteroatom, and X is C 2 -C 20 -alkylene which may be interrupted by 1 to 10 nonadjacent oxy groups and/or unsubstituted or methoxy-substituted C 1 -C 4 -alkylimino groups, or C 3 -C 15 -cycloalkylene, with at least one (meth)acrylic ester (D) in the presence of at least one heterogeneous catalyst (K), wherein the heterogeneous catalyst (K) is used without any further solvent and the content of polymerization inhibitors in the reaction mixture is < 450 ppm, and to the use of the (meth)acrylic esters (F) of N,N‑substituted amino alcohols. |