(N)-alkenylation of amide-type cpds. - by reaction with alkenyl ester using platinum-Gp. metal catalyst

摘要

Prepn. of N-alkenyl derivs. (I) of amide-type cpds. of formula (II):-R-X-NH-R1 (where R and R1 are aliphatic), alicyclic, aromatic or heterocyclic gps., or together can form a ring; X is CO, SO2 or another electron-withdrawing gp.) is carried out by reacting (II) with an alkenyl ester (III) in the presence of a Pt-group metal catalyst. Cpds. (I) can be used as monomers for preparing homo-or copolymers. In an example, N-vinylcaprolactam is prepd. from caprolactam and vinyl acetate.