Abstract Aryl methyl ketones 1a-e gave with N, N-dimethylacetamide dimethylacetal (DMADMA)(E)-1-aryl-3-(dimethylamino)-but-2-en-1-ones 2a-e. Substitution of the N, N- (dimethylamino) group in the reaction with ammonium acetate afforded the corresponding (Z)-3-amino-1-aryl-but-2-en-1-ones 3a-e. In the reaction of 3a-e with diethyl azodicarboxylate intermediates 4a-e were formed, which were, in most cases without ...
