Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Transformation of N-carbamoyl or acetyl-4-trimethylsilyl-3-alkyn-1-amines to diversely substituted 2-pyrrolidinones, via a Wacker-type reaction, is described. ... A mild method for the synthesis of γ-lactams, by means of a Wacker-type reaction, is reported.