From what I understand methylamine is watched mainly because of its use in the reductive amination of phenylacetone to meth. And Propionic anhydride
is watched not because it is similar to acetic anhydride, but because it used for creating the propionamide during fentanyl synthesis. Also it can be
used for propiophenone synthesis, which has the potential to be turned into a variety of amphetamine type drugs.
But both these chemicals have many more legitimate uses. |