(1)
Baak, M.; Rubin, Y.; Franz, A.; Stoeckli-Evans, H.; Bigler, L.; Nachbauer, J.; Neier, R. An Unexpected Tandem Reaction Between N-Butadienyl-N-Alkylketene N,O-Trimethylsilylacetals of Propionamide and Activated Dienophiles Like N-Phenyl-Maleimide or Acryloyl Chloride. Chimia 1993, 47 (6), 233. https://doi.org/10.2533/chimia.1993.233.